🔐 CVE Alert

CVE-2026-3035

MEDIUM 5.5

Authentication Bypass Using an Alternate Path or Channel in GitLab

CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th

GitLab has remediated an issue in GitLab EE affecting all versions from 11.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with project Maintainer permissions could have accessed the terminal of a protected environment they were not authorized to use due to improper authorization checks.

CWE CWE-288
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Aug 26, 2026
Last Updated Aug 26, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Affected Versions

GitLab / GitLab
11.3 < 19.1.7 19.2 < 19.2.5 19.3 < 19.3.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
hackerone.com: https://hackerone.com/reports/3529751 gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/591189 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/

Credits

Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program