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CVE-2026-1322

Business Logic Errors in GitLab

CVSS 6.8 MEDIUMEPSS 0.3%CWE-840
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.0 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with a read_api scoped OAuth application to create issues and add comments to issues in private projects due to improper authorization.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products
GitLab · GitLab
public PoCs found — 1
cve_referencehackerone.com/reports/3508895unverified
⚠ 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/2026/05/13/patch-release-gitlab-18-11-3-released/https://gitlab.com/gitlab-org/gitlab/-/work_items/587270https://hackerone.com/reports/3508895