CVE-2026-2238: Missing Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.5 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an unauthenticated user to view confidential issue references on public projects due to improper authorization checks.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 18.11.6 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 19.0.3 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 19.1.1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-2238?
CVE-2026-2238 has a medium severity score of 5.3.
How do I fix CVE-2026-2238?
To fix CVE-2026-2238, upgrade GitLab to versions 18.11.6, 19.0.3, or 19.1.1 and later.
What systems are affected by CVE-2026-2238?
CVE-2026-2238 affects GitLab CE and GitLab EE versions from 17.5 prior to 18.11.6, 19.0 prior to 19.0.3, and 19.1 prior to 19.1.1.
What type of vulnerability is CVE-2026-2238?
CVE-2026-2238 is classified as a missing authorization vulnerability.
What can attackers do with CVE-2026-2238?
An unauthenticated user could potentially view confidential issue references on public projects due to improper authorization.