Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
GitLab GitLab — Missing Authorization in GitLab
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L N U L N N 4.3 .0028 20.7 —
AFFECTED
Product Versions Fixed
GitLab 12.0 – —
TIMELINE
Apr 21 Reserved by GitLab
Aug 12 Published (CNA: GitLab)
Aug 13 EXPLOIT PUBLISHED — CVE-2026-6821 (GitLab). Public exploit reference added.
Description
GitLab has remediated an issue in GitLab EE affecting all versions from 12.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user to bypass IP-based access restrictions and read limited merge request information from a private project due to missing authorization checks in a merge requests API endpoint.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 21, 2026 | Reserved | Reserved by GitLab |
| August 12, 2026 | Published | Published (CNA: GitLab) |
| August 13, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-6821 (GitLab). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| GitLab | GitLab | — | 12.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-6821 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.