CVE-2026-3553

Incorrect Authorization in GitLab

CVSS 3.1 LOWEPSS 0.2%CWE-863

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.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

GitLab · GitLab

public PoCs found — 1

cve_referencehackerone.com/reports/3578216unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/592295 https://hackerone.com/reports/3578216