{ "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-2026-10031", "tracking": { "current_release_date": "2026-09-06T15:12:47.810817Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-10031", "initial_release_date": "2026-07-30T23:26:35.717861Z", "revision_history": [ { "date": "2026-07-30T23:26:35.717861Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-07-30T23:26:44.616325Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-07-30T23:38:46.123978Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (4).| CWES updated (1)." }, { "date": "2026-07-30T23:38:54.344569Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-07-31T12:39:19.505740Z", "number": "5", "summary": "Products created (1).| Products removed (1)." }, { "date": "2026-07-31T12:39:32.264485Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-07-31T15:33:06.726133Z", "number": "7", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-07-31T15:33:08.143390Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-07-31T18:35:55.929517Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| Products connected (25).| References created (5).| CWES updated (1)." }, { "date": "2026-07-31T18:36:09.011800Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-07-31T20:39:05.645378Z", "number": "11", "summary": "Unknown change." }, { "date": "2026-08-04T20:47:54.029046Z", "number": "12", "summary": "Products created (1)." }, { "date": "2026-08-04T20:48:06.369557Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-08-07T21:07:31.553223Z", "number": "14", "summary": "Products removed (1)." }, { "date": "2026-08-07T21:07:34.136908Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-08-11T15:12:06.750600Z", "number": "16", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-08-11T15:12:08.354330Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-09-02T10:45:57.310393Z", "number": "18", "summary": "EPSS updated." }, { "date": "2026-09-02T10:45:58.453230Z", "number": "19", "summary": "NCSC Score updated." }, { "date": "2026-09-03T14:38:32.236461Z", "number": "20", "summary": "EPSS updated." }, { "date": "2026-09-03T19:01:54.308987Z", "number": "21", "summary": "EPSS updated." }, { "date": "2026-09-03T19:01:55.551138Z", "number": "22", "summary": "NCSC Score updated." }, { "date": "2026-09-04T15:47:56.942344Z", "number": "23", "summary": "EPSS updated." }, { "date": "2026-09-05T03:58:49.232408Z", "number": "24", "summary": "NCSC Score updated." }, { "date": "2026-09-05T15:45:46.923510Z", "number": "25", "summary": "EPSS updated." } ], "status": "interim", "version": "25" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/<=2.7.4", "product": { "name": "vers:semver/<=2.7.4", "product_id": "CSAFPID-8919540" } } ], "category": "product_name", "name": "SFTPGo" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/0.9.1", "product": { "name": "vers:unknown/0.9.1", "product_id": "CSAFPID-3633730" } }, { "category": "product_version_range", "name": "vers:unknown/0.9.2", "product": { "name": "vers:unknown/0.9.2", "product_id": "CSAFPID-3633731" } }, { "category": "product_version_range", "name": "vers:unknown/0.9.3", "product": { "name": "vers:unknown/0.9.3", "product_id": "CSAFPID-3633732" } }, { "category": "product_version_range", "name": "vers:unknown/0.9.4", "product": { "name": "vers:unknown/0.9.4", "product_id": "CSAFPID-3633733" } }, { "category": "product_version_range", "name": "vers:unknown/0.9.5", "product": { "name": "vers:unknown/0.9.5", "product_id": "CSAFPID-3633734" } }, { "category": "product_version_range", "name": "vers:unknown/0.9.6", "product": { "name": "vers:unknown/0.9.6", "product_id": "CSAFPID-3633735" } }, { "category": "product_version_range", "name": "vers:unknown/v1.0.0", "product": { "name": "vers:unknown/v1.0.0", "product_id": "CSAFPID-3633736" } }, { "category": "product_version_range", "name": "vers:unknown/v1.1.0", "product": { "name": "vers:unknown/v1.1.0", "product_id": "CSAFPID-3633737" } }, { "category": "product_version_range", "name": "vers:unknown/v1.1.1", "product": { "name": "vers:unknown/v1.1.1", "product_id": "CSAFPID-3633738" } }, { "category": "product_version_range", "name": "vers:unknown/v1.2.0", "product": { "name": "vers:unknown/v1.2.0", "product_id": "CSAFPID-3633739" } }, { "category": "product_version_range", "name": "vers:unknown/v1.2.1", "product": { "name": "vers:unknown/v1.2.1", "product_id": "CSAFPID-3633740" } }, { "category": "product_version_range", "name": "vers:unknown/v1.2.2", "product": { "name": "vers:unknown/v1.2.2", "product_id": "CSAFPID-3633741" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.0", "product": { "name": "vers:unknown/v2.0.0", "product_id": "CSAFPID-3633742" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.1", "product": { "name": "vers:unknown/v2.0.1", "product_id": "CSAFPID-3633743" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.2", "product": { "name": "vers:unknown/v2.0.2", "product_id": "CSAFPID-3633744" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.0", "product": { "name": "vers:unknown/v2.1.0", "product_id": "CSAFPID-3633745" } }, { "category": "product_version_range", "name": "vers:unknown/v2.2.0", "product": { "name": "vers:unknown/v2.2.0", "product_id": "CSAFPID-3633746" } }, { "category": "product_version_range", "name": "vers:unknown/v2.2.1", "product": { "name": "vers:unknown/v2.2.1", "product_id": "CSAFPID-3633747" } }, { "category": "product_version_range", "name": "vers:unknown/v2.3.0", "product": { "name": "vers:unknown/v2.3.0", "product_id": "CSAFPID-3633748" } }, { "category": "product_version_range", "name": "vers:unknown/v2.4.0", "product": { "name": "vers:unknown/v2.4.0", "product_id": "CSAFPID-3633749" } }, { "category": "product_version_range", "name": "vers:unknown/v2.5.0", "product": { "name": "vers:unknown/v2.5.0", "product_id": "CSAFPID-3633750" } }, { "category": "product_version_range", "name": "vers:unknown/v2.5.1", "product": { "name": "vers:unknown/v2.5.1", "product_id": "CSAFPID-3633751" } }, { "category": "product_version_range", "name": "vers:unknown/v2.6.0", "product": { "name": "vers:unknown/v2.6.0", "product_id": "CSAFPID-3633752" } }, { "category": "product_version_range", "name": "vers:unknown/v2.7.0", "product": { "name": "vers:unknown/v2.7.0", "product_id": "CSAFPID-3984770" } }, { "category": "product_version_range", "name": "vers:unknown/v2.7.1", "product": { "name": "vers:unknown/v2.7.1", "product_id": "CSAFPID-5930652" } }, { "category": "product_version_range", "name": "vers:unknown/v2.7.3", "product": { "name": "vers:unknown/v2.7.3", "product_id": "CSAFPID-8920270" } } ], "category": "product_name", "name": "sftpgo" } ], "category": "vendor", "name": "drakkan" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-10031", "cwe": { "id": "CWE-863", "name": "Incorrect Authorization" }, "notes": [ { "category": "description", "text": "SFTPGo prior to 2.7.4 contains a permission bypass vulnerability that allows authenticated users to circumvent per-directory access controls by creating symbolic links in a permitted directory that point to files in directories where download, upload, or overwrite permissions are denied. Attackers can exploit the create_symlinks permission combined with read and write access in one directory to read or modify files in restricted directories, as operations are authorized against the link's directory permissions rather than the dereferenced target's directory permissions.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10031" }, { "category": "description", "text": "SFTPGo prior to 2.7.4 contains a permission bypass vulnerability that allows authenticated users to circumvent per-directory access controls by creating symbolic links in a permitted directory that point to files in directories where download, upload, or overwrite permissions are denied. Attackers can exploit the create_symlinks permission combined with read and write access in one directory to read or modify files in restricted directories, as operations are authorized against the link's directory permissions rather than the dereferenced target's directory permissions.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/10xxx/CVE-2026-10031.json" }, { "category": "description", "text": "SFTPGo prior to 2.7.4 contains a permission bypass vulnerability that allows authenticated users to circumvent per-directory access controls by creating symbolic links in a permitted directory that point to files in directories where download, upload, or overwrite permissions are denied. Attackers can exploit the create_symlinks permission combined with read and write access in one directory to read or modify files in restricted directories, as operations are authorized against the link's directory permissions rather than the dereferenced target's directory permissions.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-10031.json?alt=media" }, { "category": "other", "text": "0.00181", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "title": "CVSSV4" }, { "category": "other", "text": "2.3", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "category": "other", "text": "Is related to CWE-863 (Incorrect Authorization)", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score, The value of the most recent EPSS score, Is related to (a version of) an uncommon product, There is cwe data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-8919540", "CSAFPID-3633730", "CSAFPID-3633731", "CSAFPID-3633732", "CSAFPID-3633733", "CSAFPID-3633734", "CSAFPID-3633735", "CSAFPID-3633736", "CSAFPID-3633737", "CSAFPID-3633738", "CSAFPID-3633739", "CSAFPID-3633740", "CSAFPID-3633741", "CSAFPID-3633742", "CSAFPID-3633743", "CSAFPID-3633744", "CSAFPID-3633745", "CSAFPID-3633746", "CSAFPID-3633747", "CSAFPID-3633748", "CSAFPID-3633749", "CSAFPID-3633750", "CSAFPID-3633751", "CSAFPID-3633752", "CSAFPID-3984770", "CSAFPID-5930652", "CSAFPID-8920270" ] }, "references": [ { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10031" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/10xxx/CVE-2026-10031.json" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-10031.json?alt=media" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-10031" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://github.com/drakkan/sftpgo" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/drakkan/sftpgo/releases/tag/v2.7.4" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/drakkan/sftpgo/security/advisories/GHSA-fj9v-mxr3-w75w" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://www.vulncheck.com/advisories/sftpgo-permission-bypass-via-symbolic-link-creation" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10031.json" }, { "category": "external", "summary": "Reference - osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10031" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "baseScore": 4.2, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-3633730", "CSAFPID-3633731", "CSAFPID-3633732", "CSAFPID-3633733", "CSAFPID-3633734", "CSAFPID-3633735", "CSAFPID-3633736", "CSAFPID-3633737", "CSAFPID-3633738", "CSAFPID-3633739", "CSAFPID-3633740", "CSAFPID-3633741", "CSAFPID-3633742", "CSAFPID-3633743", "CSAFPID-3633744", "CSAFPID-3633745", "CSAFPID-3633746", "CSAFPID-3633747", "CSAFPID-3633748", "CSAFPID-3633749", "CSAFPID-3633750", "CSAFPID-3633751", "CSAFPID-3633752", "CSAFPID-3984770", "CSAFPID-5930652", "CSAFPID-8919540", "CSAFPID-8920270" ] } ], "title": "CVE-2026-10031" } ] }