Missing Authentication for Critical Function in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an authenticated user to bypass SAML SSO sign-in restrictions and authenticate without SSO due to missing authentication enforcement checks.
BIT-gitlab-2026-12910
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:BIT-gitlab-2026-12910
gitlab
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 19.1.8
Source reference:
/affected/0/ranges19.2.6Source reference:
/affected/0/ranges19.3.2Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "18.6.0"
},
{
"fixed": "19.1.8"
},
{
"introduced": "19.2.0"
},
{
"fixed": "19.2.6"
},
{
"introduced": "19.3.0"
},
{
"fixed": "19.3.2"
}
]
}
],
"package": {
"name": "gitlab",
"purl": "pkg:bitnami/gitlab",
"ecosystem": "Bitnami"
},
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
}
],
"database_specific": {
"source": "https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2026-12910.json"
}
}
]- Related CVEs
- CVE-2026-12910
Source reference:
/aliases
Publisher severity
medium
Source reference: /database_specific/severity
- Event
- #15220 · Revision 1
- Added to Heist Feed
- Publisher date