What’s Vulnerable › Vulnerabilities

CVE-2026-5377: Incorrect Authorization in GitLab

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-22 · updated 2026-06-17
• Weakness: CWE-863

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that could have allowed an authenticated user to access titles of confidential or private issues in public projects due to improper access control in the issue description rendering process.

Affected products

• GitLab: 18.11.0

References

• https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/
• https://gitlab.com/gitlab-org/gitlab/-/work_items/595553
• https://hackerone.com/reports/3640688

Get alerted when CVE-2026-5377 or the next vulnerability affects your stack