CVE-2026-4398
- Source
- https://cve.org/CVERecord?id=CVE-2026-4398
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4398.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-4398
- Aliases
- Downstream
- Published
- 2026-04-08T23:16:59Z
- Modified
- 2026-10-30T10:30:29Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- Authorization Bypass Through User-Controlled Key in GitLab
- Details
-
GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user could have assigned compliance frameworks from namespaces they were not authorized to access to their own project, due to missing namespace validation on self-managed instances.
- Database specific
{ "cna_assigner": "GitLab", "cwe_ids": [ "CWE-639" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4398.json", "unresolved_ranges": [ { "extracted_events": [ { "range": [ { "introduced": "18.3" }, { "fixed": "19.1.7" }, { "introduced": "19.2" }, { "fixed": "19.2.5" }, { "introduced": "19.3" }, { "fixed": "19.3.1" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] }, { "extracted_events": [ { "range": [ { "introduced": "18.3" }, { "fixed": "19.1.7" }, { "introduced": "19.2" }, { "fixed": "19.2.5" }, { "introduced": "19.3" }, { "fixed": "19.3.1" } ], "source": "DESCRIPTION" } ] } ] }- References
-
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/
- https://gitlab.com/gitlab-org/gitlab/-/work_items/600360
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4398.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-4398
- https://hackerone.com/reports/3549150
- git://git@gitlab.com:gitlab-org/gitlab.git
Affected packages
Git / gitlab.com/gitlab-org/gitlab
Affected ranges
- Type
- GIT
- Repo
- https://gitlab.com/gitlab-org/gitlab
- Events
-
IntroducedFixedIntroducedFixedIntroducedLast Affected
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "range": [ { "introduced": "18.3.0" }, { "fixed": "19.1.7" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "range": [ { "introduced": "19.2.0" }, { "fixed": "19.2.5" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:gitlab:gitlab:19.3.0:*:*:*:enterprise:*:*:*", "range": [ { "introduced": "19.3.0" }, { "last_affected": "19.3.0" } ], "source": "CPE_STRING" } ] }