VDB
CVE-2026-6335
CVE-2026-6335
PUBLISHED
CVSS 5.400000095367432 MEDIUM
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user to execute arbitrary code in another user's browser session due to improper sanitization.
EPSS 0.03% · 9.7th percentile
Risk Scores
CVSS 3.1
5.400000095367432
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score
0.03%
9.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| GitLab | GitLab | 18.11 |
Timeline
- May 14, 2026 CVE Published
- May 14, 2026 PoC Published
- May 15, 2026 CVE Updated
- May 15, 2026 Security Advisory
- May 16, 2026 EPSS Score
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/596760 url
- HackerOne Bug Bounty Report #3673647 exploit
- https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ url
- https://nvd.nist.gov/vuln/detail/CVE-2026-6335 advisory
- https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released url
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-18-11-3-released/ advisory