CVE-2026-16627

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to escalate privileges due to improper sanitization of HTML content rendered in a CI job modal.

Affected

GitLab

CVSS v3.1 NVD

9.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS v3.1 GITLAB

7.7 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS

0.48% chance of exploitation in the next 30 days, 40th percentile

Published

2026-08-12

Updated

2026-08-13

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3880796

Security advisories

• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released

References

• CVE Record
• NVD entry