CVE-2026-3553: Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to access confidential issue details due to incorrect authorization checks.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
GitLab CE/EEto a version that resolves this vulnerability.Fixed in 18.10.8 - Upgrade
Upgrade
GitLab CE/EEto a version that resolves this vulnerability.Fixed in 18.11.5 - Upgrade
Upgrade
GitLab CE/EEto a version that resolves this vulnerability.Fixed in 19.0.2
Event History
Frequently Asked Questions
What is the severity of CVE-2026-3553?
The severity of CVE-2026-3553 is classified as low (3.1).
How do I fix CVE-2026-3553?
To fix CVE-2026-3553, upgrade to GitLab versions 18.10.8, 18.11.5, 19.0.2 or above.
What types of software are affected by CVE-2026-3553?
CVE-2026-3553 affects GitLab CE and GitLab EE versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2.
What does CVE-2026-3553 exploit?
CVE-2026-3553 exploits incorrect authorization checks that may allow an authenticated user to access confidential issue details.
When was CVE-2026-3553 published?
CVE-2026-3553 was published on June 11, 2026.