MEDIUMCVSS v3.1 5.9Vulnerability
CVE-2026-16255
GitLab has remediated an issue in GitLab EE affecting all versions from 12.0 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when the instance-wide SAML or LDAP membership lock was enabled, an authenticated user could have granted or accepted project and group membership outside the identity provider's control, due to incomplete enforcement of the membership lock on requests created before the lock was enabled.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Epss score
- 0.00209
- Cvss severity
- MEDIUM
- Cvss score
- 5.9
- Retrieved at
- 2026-10-22T22:17:33+00:00
- Last source
- FIRST EPSS
- Score
- 5.9
- Cvss version
- 3.1
- Cve id
- CVE-2026-16255
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
- First seen by Signal
- 2026-10-22T01:57:09+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
- Published at
- 2026-10-22T01:16:59.613
- Last modified
- 2026-10-22T16:18:19.040
- Epss percentile
- 0.10507
Related Entities (1)
HAS_WEAKNESS (1)
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