PT-2026-34519 · Gitlab · Gitlab Ce/Ee

Published 2026-04-22 · Updated 2026-04-24 · CVE-2026-5377

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 18.11 through 18.11.0

Description Improper access control in the issue description rendering process could allow an authenticated user to access titles of confidential or private issues within public projects.

Recommendations Update to version 18.11.1.

Exploit

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

BIT-GITLAB-2026-5377

CVE-2026-5377

Affected Products

Gitlab Ce/Ee

References · 6

• 🔥 https://hackerone.com/reports/3640688 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5377 · Security Note
• https://osv.dev/vulnerability/BIT-gitlab-2026-5377 · Vendor Advisory
• https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released · Vendor Advisory
• https://gitlab.com/gitlab-org/gitlab/-/work_items/595553 · Note
• https://twitter.com/CVEnew/status/2047012125382750614 · Twitter Post