CVE-2026-1747 | THREATINT

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 17.11 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that, under certain conditions, could have allowed Developer-role users with insufficient privileges to make unauthorized modifications to protected Conan packages.

PUBLISHED Reserved 2026-02-01 | Published 2026-02-25 | Updated 2026-02-26 | Assigner GitLab

MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-288: Authentication Bypass Using an Alternate Path or Channel

Product status

Default status

unaffected

17.11 (semver) before 18.7.5

affected

18.8 (semver) before 18.8.5

affected

18.9 (semver) before 18.9.1

affected

Credits

Thanks [modhanami](https://hackerone.com/modhanami) for reporting this vulnerability through our HackerOne bug bounty program finder

References

gitlab.com/gitlab-org/gitlab/-/issues/588385 (GitLab Issue #588385) issue-tracking permissions-required

hackerone.com/reports/3533088 (HackerOne Bug Bounty Report #3533088) technical-description exploit permissions-required

about.gitlab.com/...25/patch-release-gitlab-18-9-1-released/

cve.org (CVE-2026-1747)

nvd.nist.gov (CVE-2026-1747)

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