{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-31959",
        "tracking": {
            "current_release_date": "2026-03-26T01:37:03.879273Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-31959",
            "initial_release_date": "2026-03-11T00:53:11.911382Z",
            "revision_history": [
                {
                    "date": "2026-03-11T00:53:11.911382Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)."
                },
                {
                    "date": "2026-03-11T00:53:28.703077Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-03-11T19:39:04.914760Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-03-11T19:39:06.557405Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-11T20:26:43.511837Z",
                    "number": "5",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-03-11T20:26:50.415190Z",
                    "number": "6",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-11T21:56:46.281324Z",
                    "number": "7",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-03-12T14:57:26.623908Z",
                    "number": "8",
                    "summary": "Source created.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-12T20:38:52.983686Z",
                    "number": "9",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-03-16T19:25:21.626804Z",
                    "number": "10",
                    "summary": "Products created (1).| Product Identifiers created (1)."
                },
                {
                    "date": "2026-03-16T19:25:26.614956Z",
                    "number": "11",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-19T15:29:29.532016Z",
                    "number": "12",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (6).| CWES updated (1)."
                },
                {
                    "date": "2026-03-20T09:32:08.031245Z",
                    "number": "13",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-20T09:32:13.565459Z",
                    "number": "14",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-25T18:14:11.049272Z",
                    "number": "15",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (5).| CWES updated (1)."
                },
                {
                    "date": "2026-03-25T18:15:02.989049Z",
                    "number": "16",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (5)."
                },
                {
                    "date": "2026-03-25T21:45:31.623899Z",
                    "number": "17",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (9).| References created (3).| CWES updated (1)."
                }
            ],
            "status": "interim",
            "version": "17"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<0.7.1",
                                "product": {
                                    "name": "vers:unknown/<0.7.1",
                                    "product_id": "CSAFPID-5798752",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:anchore:quill:*:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<=0.7.1",
                                "product": {
                                    "name": "vers:unknown/<=0.7.1",
                                    "product_id": "CSAFPID-5830334",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:anchore:quill:*:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=0|<0.7.1",
                                "product": {
                                    "name": "vers:unknown/>=0|<0.7.1",
                                    "product_id": "CSAFPID-5907277"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.1.0",
                                "product": {
                                    "name": "vers:unknown/v0.1.0",
                                    "product_id": "CSAFPID-5909605"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.2.0",
                                "product": {
                                    "name": "vers:unknown/v0.2.0",
                                    "product_id": "CSAFPID-5909606"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.3.0",
                                "product": {
                                    "name": "vers:unknown/v0.3.0",
                                    "product_id": "CSAFPID-5909607"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.4.1",
                                "product": {
                                    "name": "vers:unknown/v0.4.1",
                                    "product_id": "CSAFPID-5909608"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.4.2",
                                "product": {
                                    "name": "vers:unknown/v0.4.2",
                                    "product_id": "CSAFPID-5909609"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.5.0",
                                "product": {
                                    "name": "vers:unknown/v0.5.0",
                                    "product_id": "CSAFPID-5909610"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.5.1",
                                "product": {
                                    "name": "vers:unknown/v0.5.1",
                                    "product_id": "CSAFPID-5909611"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.6.0",
                                "product": {
                                    "name": "vers:unknown/v0.6.0",
                                    "product_id": "CSAFPID-5909612"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/v0.7.0",
                                "product": {
                                    "name": "vers:unknown/v0.7.0",
                                    "product_id": "CSAFPID-5909613"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "quill"
                    }
                ],
                "category": "vendor",
                "name": "anchore"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-31959",
            "cwe": {
                "id": "CWE-918",
                "name": "Server-Side Request Forgery (SSRF)"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "### Impact\n\nQuill before version `v0.7.1` contains a Server-Side Request Forgery (SSRF) vulnerability when attempting to fetch the Apple notarization submission logs. Exploitation requires the ability to modify API responses from Apple's notarization service, which is not possible under standard network conditions due to HTTPS with proper TLS certificate validation; however, environments with TLS-intercepting proxies (common in corporate networks), compromised certificate authorities, or other trust boundary violations are at risk.\n\nWhen retrieving submission logs, Quill fetches a URL provided in the API response without validating that the scheme is https or that the host does not point to a local or multicast IP address. An attacker who can tamper with the response can supply an arbitrary URL, causing the Quill client to issue HTTP or HTTPS requests to attacker-controlled or internal network destinations. This could lead to exfiltration of sensitive data such as cloud provider credentials or internal service responses. Both the Quill CLI and library are affected when used to retrieve notarization submission logs.\n\n\n### Patches\n\nFixed in Quill version `v0.7.1`\n\n\n### Workarounds\n\nNone\n\n### Credit\n\nAnchore would like to thank opera-aklajn (Opera) for reporting this vulnerability\n\n### Resources\n\n- [Apple Get Submission Log API Documentation](https://developer.apple.com/documentation/notaryapi/get-submission-log)",
                    "title": "github - https://github.com/advisories/GHSA-7q3q-5px6-4c5p"
                },
                {
                    "category": "description",
                    "text": "Quill provides simple mac binary signing and notarization from any platform. Quill before version v0.7.1 contains a Server-Side Request Forgery (SSRF) vulnerability when attempting to fetch the Apple notarization submission logs. Exploitation requires the ability to modify API responses from Apple's notarization service, which is not possible under standard network conditions due to HTTPS with proper TLS certificate validation; however, environments with TLS-intercepting proxies (common in corporate networks), compromised certificate authorities, or other trust boundary violations are at risk. When retrieving submission logs, Quill fetches a URL provided in the API response without validating that the scheme is https or that the host does not point to a local or multicast IP address. An attacker who can tamper with the response can supply an arbitrary URL, causing the Quill client to issue HTTP or HTTPS requests to attacker-controlled or internal network destinations. This could lead to exfiltration of sensitive data such as cloud provider credentials or internal service responses. Both the Quill CLI and library are affected when used to retrieve notarization submission logs. This vulnerability is fixed in 0.7.1.",
                    "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-31959"
                },
                {
                    "category": "description",
                    "text": "Quill provides simple mac binary signing and notarization from any platform. Quill before version v0.7.1 contains a Server-Side Request Forgery (SSRF) vulnerability when attempting to fetch the Apple notarization submission logs. Exploitation requires the ability to modify API responses from Apple's notarization service, which is not possible under standard network conditions due to HTTPS with proper TLS certificate validation; however, environments with TLS-intercepting proxies (common in corporate networks), compromised certificate authorities, or other trust boundary violations are at risk. When retrieving submission logs, Quill fetches a URL provided in the API response without validating that the scheme is https or that the host does not point to a local or multicast IP address. An attacker who can tamper with the response can supply an arbitrary URL, causing the Quill client to issue HTTP or HTTPS requests to attacker-controlled or internal network destinations. This could lead to exfiltration of sensitive data such as cloud provider credentials or internal service responses. Both the Quill CLI and library are affected when used to retrieve notarization submission logs. This vulnerability is fixed in 0.7.1.",
                    "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-31959"
                },
                {
                    "category": "description",
                    "text": "### Impact\n\nQuill before version `v0.7.1` contains a Server-Side Request Forgery (SSRF) vulnerability when attempting to fetch the Apple notarization submission logs. Exploitation requires the ability to modify API responses from Apple's notarization service, which is not possible under standard network conditions due to HTTPS with proper TLS certificate validation; however, environments with TLS-intercepting proxies (common in corporate networks), compromised certificate authorities, or other trust boundary violations are at risk.\n\nWhen retrieving submission logs, Quill fetches a URL provided in the API response without validating that the scheme is https or that the host does not point to a local or multicast IP address. An attacker who can tamper with the response can supply an arbitrary URL, causing the Quill client to issue HTTP or HTTPS requests to attacker-controlled or internal network destinations. This could lead to exfiltration of sensitive data such as cloud provider credentials or internal service responses. Both the Quill CLI and library are affected when used to retrieve notarization submission logs.\n\n\n### Patches\n\nFixed in Quill version `v0.7.1`\n\n\n### Workarounds\n\nNone\n\n### Credit\n\nAnchore would like to thank opera-aklajn (Opera) for reporting this vulnerability\n\n### Resources\n\n- [Apple Get Submission Log API Documentation](https://developer.apple.com/documentation/notaryapi/get-submission-log)",
                    "title": "github - https://api.github.com/advisories/GHSA-7q3q-5px6-4c5p"
                },
                {
                    "category": "description",
                    "text": "Quill vulnerable to SSRF via unvalidated URL from Apple notarization log retrieval in github.com/anchore/quill",
                    "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGO-2026-4671.json?alt=media"
                },
                {
                    "category": "description",
                    "text": "### Impact\n\nQuill before version `v0.7.1` contains a Server-Side Request Forgery (SSRF) vulnerability when attempting to fetch the Apple notarization submission logs. Exploitation requires the ability to modify API responses from Apple's notarization service, which is not possible under standard network conditions due to HTTPS with proper TLS certificate validation; however, environments with TLS-intercepting proxies (common in corporate networks), compromised certificate authorities, or other trust boundary violations are at risk.\n\nWhen retrieving submission logs, Quill fetches a URL provided in the API response without validating that the scheme is https or that the host does not point to a local or multicast IP address. An attacker who can tamper with the response can supply an arbitrary URL, causing the Quill client to issue HTTP or HTTPS requests to attacker-controlled or internal network destinations. This could lead to exfiltration of sensitive data such as cloud provider credentials or internal service responses. Both the Quill CLI and library are affected when used to retrieve notarization submission logs.\n\n\n### Patches\n\nFixed in Quill version `v0.7.1`\n\n\n### Workarounds\n\nNone\n\n### Credit\n\nAnchore would like to thank opera-aklajn (Opera) for reporting this vulnerability\n\n### Resources\n\n- [Apple Get Submission Log API Documentation](https://developer.apple.com/documentation/notaryapi/get-submission-log)",
                    "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGHSA-7q3q-5px6-4c5p.json?alt=media"
                },
                {
                    "category": "description",
                    "text": "Quill provides simple mac binary signing and notarization from any platform. Quill before version v0.7.1 contains a Server-Side Request Forgery (SSRF) vulnerability when attempting to fetch the Apple notarization submission logs. Exploitation requires the ability to modify API responses from Apple's notarization service, which is not possible under standard network conditions due to HTTPS with proper TLS certificate validation; however, environments with TLS-intercepting proxies (common in corporate networks), compromised certificate authorities, or other trust boundary violations are at risk. When retrieving submission logs, Quill fetches a URL provided in the API response without validating that the scheme is https or that the host does not point to a local or multicast IP address. An attacker who can tamper with the response can supply an arbitrary URL, causing the Quill client to issue HTTP or HTTPS requests to attacker-controlled or internal network destinations. This could lead to exfiltration of sensitive data such as cloud provider credentials or internal service responses. Both the Quill CLI and library are affected when used to retrieve notarization submission logs. This vulnerability is fixed in 0.7.1.",
                    "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-31959.json?alt=media"
                },
                {
                    "category": "other",
                    "text": "0.00013",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "4.7",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "The value of the most recent EPSS score",
                    "title": "NCSC Score top decreasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-5798752",
                    "CSAFPID-5830334",
                    "CSAFPID-5907277",
                    "CSAFPID-5909605",
                    "CSAFPID-5909606",
                    "CSAFPID-5909607",
                    "CSAFPID-5909608",
                    "CSAFPID-5909609",
                    "CSAFPID-5909610",
                    "CSAFPID-5909611",
                    "CSAFPID-5909612",
                    "CSAFPID-5909613"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - github",
                    "url": "https://github.com/advisories/GHSA-7q3q-5px6-4c5p"
                },
                {
                    "category": "external",
                    "summary": "Source raw - github",
                    "url": "https://api.github.com/advisories/GHSA-7q3q-5px6-4c5p"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-31959"
                },
                {
                    "category": "external",
                    "summary": "Source raw - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/31xxx/CVE-2026-31959.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31959"
                },
                {
                    "category": "external",
                    "summary": "Source raw - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31959"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-31959"
                },
                {
                    "category": "external",
                    "summary": "Source raw - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - github",
                    "url": "https://api.github.com/advisories/GHSA-7q3q-5px6-4c5p"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - osv",
                    "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGHSA-7q3q-5px6-4c5p.json?alt=media"
                },
                {
                    "category": "external",
                    "summary": "Source - osv",
                    "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGO-2026-4671.json?alt=media"
                },
                {
                    "category": "external",
                    "summary": "Source - osv",
                    "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-31959.json?alt=media"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd; osv",
                    "url": "https://github.com/anchore/quill/security/advisories/GHSA-7q3q-5px6-4c5p"
                },
                {
                    "category": "external",
                    "summary": "Reference - github; osv",
                    "url": "https://github.com/anchore/quill/commit/e41d66a517c2dc20ad8e9fbccffbdc6ba5ef0020"
                },
                {
                    "category": "external",
                    "summary": "Reference - github; osv",
                    "url": "https://developer.apple.com/documentation/notaryapi/get-submission-log"
                },
                {
                    "category": "external",
                    "summary": "Reference - github; osv",
                    "url": "https://github.com/anchore/quill/releases/tag/v0.7.1"
                },
                {
                    "category": "external",
                    "summary": "Reference - github",
                    "url": "https://github.com/advisories/GHSA-7q3q-5px6-4c5p"
                },
                {
                    "category": "external",
                    "summary": "Reference - github; osv",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31959"
                },
                {
                    "category": "external",
                    "summary": "Reference - osv",
                    "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31959.json"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-5798752",
                        "CSAFPID-5830334",
                        "CSAFPID-5907277",
                        "CSAFPID-5909605",
                        "CSAFPID-5909606",
                        "CSAFPID-5909607",
                        "CSAFPID-5909608",
                        "CSAFPID-5909609",
                        "CSAFPID-5909610",
                        "CSAFPID-5909611",
                        "CSAFPID-5909612",
                        "CSAFPID-5909613"
                    ]
                }
            ],
            "title": "CVE-2026-31959"
        }
    ]
}