{
    "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-2026-31839",
        "tracking": {
            "current_release_date": "2026-03-20T18:36:04.249722Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-31839",
            "initial_release_date": "2026-03-11T15:52:36.547654Z",
            "revision_history": [
                {
                    "date": "2026-03-11T15:52:36.547654Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)."
                },
                {
                    "date": "2026-03-11T15:52:41.964218Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-03-11T17:28:01.099067Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-03-11T17:28:05.180599Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-11T17:38:49.978534Z",
                    "number": "5",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1).| Unknown change."
                },
                {
                    "date": "2026-03-11T17:38:52.255475Z",
                    "number": "6",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-11T21:56:45.356513Z",
                    "number": "7",
                    "summary": "References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-03-12T14:57:38.812012Z",
                    "number": "8",
                    "summary": "Source created.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-19T15:30:42.754880Z",
                    "number": "9",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)."
                },
                {
                    "date": "2026-03-20T09:32:42.293925Z",
                    "number": "10",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-20T18:35:57.219440Z",
                    "number": "11",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| Product Identifiers created (1).| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-03-20T18:36:02.118048Z",
                    "number": "12",
                    "summary": "NCSC Score updated."
                }
            ],
            "status": "interim",
            "version": "12"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=0.9.22|<=3.0.0",
                                "product": {
                                    "name": "vers:unknown/>=0.9.22|<=3.0.0",
                                    "product_id": "CSAFPID-5875196",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:striae:striae:*:*:*:*:*:node.js:*:*"
                                    }
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "striae"
                    }
                ],
                "category": "vendor",
                "name": "striae"
            },
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=0.9.22-0|<3.0.0",
                                "product": {
                                    "name": "vers:unknown/>=0.9.22-0|<3.0.0",
                                    "product_id": "CSAFPID-5796655"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "striae"
                    }
                ],
                "category": "vendor",
                "name": "striae-org"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-31839",
            "cwe": {
                "id": "CWE-327",
                "name": "Use of a Broken or Risky Cryptographic Algorithm"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "## Summary\n\nA high-severity integrity bypass vulnerability existed in Striae's digital confirmation workflow prior to v3.0.0. Hash-only validation trusted manifest hash fields that could be modified together with package content, allowing tampered confirmation packages to pass integrity checks.\n\n## Impact\n\nConfirmation package integrity could be bypassed because both content and hash values were mutable in the same trust boundary. An attacker with access to an exported package could alter confirmation data and recompute hashes so hash-only checks still passed.\n\nThis affects users relying on digital confirmations as an immutability and forensic chain-of-custody control.\n\n## Patches\n\nPatched in **v3.0.0**.\n\nUpgrade to:\n- `v3.0.0` or later\n\nSecurity behavior added in v3.0.0:\n- Server-issued asymmetric signatures for forensic manifests\n- Canonical payload signature verification during import and manual hash verification\n- Fail-closed behavior when signature metadata is missing or invalid\n- Signature/key provenance support for audit-related workflows\n\n## Workarounds\n\nThere is no full cryptographic workaround equivalent to upgrading.\n\nTemporary mitigations:\n- Treat hash-only validation as a tamper indicator, not proof of immutability\n- Restrict package exchange to trusted authenticated internal channels\n- Require out-of-band reviewer attestation for sensitive confirmation workflows\n- Pause imports from untrusted sources until upgraded",
                    "title": "github - https://github.com/advisories/GHSA-mmf8-487q-p45m"
                },
                {
                    "category": "description",
                    "text": "Striae is a firearms examiner's comparison companion. A high-severity integrity bypass vulnerability existed in Striae's digital confirmation workflow prior to v3.0.0. Hash-only validation trusted manifest hash fields that could be modified together with package content, allowing tampered confirmation packages to pass integrity checks. This vulnerability is fixed in 3.0.0.",
                    "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-31839"
                },
                {
                    "category": "description",
                    "text": "Striae is a firearms examiner's comparison companion. A high-severity integrity bypass vulnerability existed in Striae's digital confirmation workflow prior to v3.0.0. Hash-only validation trusted manifest hash fields that could be modified together with package content, allowing tampered confirmation packages to pass integrity checks. This vulnerability is fixed in 3.0.0.",
                    "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-31839"
                },
                {
                    "category": "description",
                    "text": "## Summary\n\nA high-severity integrity bypass vulnerability existed in Striae's digital confirmation workflow prior to v3.0.0. Hash-only validation trusted manifest hash fields that could be modified together with package content, allowing tampered confirmation packages to pass integrity checks.\n\n## Impact\n\nConfirmation package integrity could be bypassed because both content and hash values were mutable in the same trust boundary. An attacker with access to an exported package could alter confirmation data and recompute hashes so hash-only checks still passed.\n\nThis affects users relying on digital confirmations as an immutability and forensic chain-of-custody control.\n\n## Patches\n\nPatched in **v3.0.0**.\n\nUpgrade to:\n- `v3.0.0` or later\n\nSecurity behavior added in v3.0.0:\n- Server-issued asymmetric signatures for forensic manifests\n- Canonical payload signature verification during import and manual hash verification\n- Fail-closed behavior when signature metadata is missing or invalid\n- Signature/key provenance support for audit-related workflows\n\n## Workarounds\n\nThere is no full cryptographic workaround equivalent to upgrading.\n\nTemporary mitigations:\n- Treat hash-only validation as a tamper indicator, not proof of immutability\n- Restrict package exchange to trusted authenticated internal channels\n- Require out-of-band reviewer attestation for sensitive confirmation workflows\n- Pause imports from untrusted sources until upgraded",
                    "title": "github - https://api.github.com/advisories/GHSA-mmf8-487q-p45m"
                },
                {
                    "category": "description",
                    "text": "Striae is a firearms examiner's comparison companion. A high-severity integrity bypass vulnerability existed in Striae's digital confirmation workflow prior to v3.0.0. Hash-only validation trusted manifest hash fields that could be modified together with package content, allowing tampered confirmation packages to pass integrity checks. This vulnerability is fixed in 3.0.0.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31839"
                },
                {
                    "category": "other",
                    "text": "7e-05",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "4.9",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is product data available from source Nvd, Is related to an uncommon cwe id",
                    "title": "NCSC Score top increasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-5796655",
                    "CSAFPID-5875196"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - github",
                    "url": "https://github.com/advisories/GHSA-mmf8-487q-p45m"
                },
                {
                    "category": "external",
                    "summary": "Source raw - github",
                    "url": "https://api.github.com/advisories/GHSA-mmf8-487q-p45m"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31839"
                },
                {
                    "category": "external",
                    "summary": "Source raw - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31839"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-31839"
                },
                {
                    "category": "external",
                    "summary": "Source raw - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/31xxx/CVE-2026-31839.json"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-31839"
                },
                {
                    "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-mmf8-487q-p45m"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31839"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd",
                    "url": "https://github.com/striae-org/striae/security/advisories/GHSA-mmf8-487q-p45m"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd",
                    "url": "https://github.com/striae-org/striae/releases/tag/v3.0.0"
                },
                {
                    "category": "external",
                    "summary": "Reference - github",
                    "url": "https://github.com/advisories/GHSA-mmf8-487q-p45m"
                },
                {
                    "category": "external",
                    "summary": "Reference - github",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31839"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH"
                    },
                    "products": [
                        "CSAFPID-5796655",
                        "CSAFPID-5875196"
                    ]
                }
            ],
            "title": "CVE-2026-31839"
        }
    ]
}