VulnerabilityAnalyzed
CVE-2026-6335
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…
MEDIUM 5.4EPSS 0.19%
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- gitlab/gitlab
- Source
- cve@gitlab.com
References
- https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/Release Notes
- https://gitlab.com/gitlab-org/gitlab/-/work_items/596760Broken Link
- https://hackerone.com/reports/3673647Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.