Advisoriesby IbisGitLabCVE-2026-78252
GitLab: cross-site scripting
Fix: upgrade to 19.1.8 or later (3 fixed versions below)
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.3 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an authenticated user could have induced a targeted user to perform unintended state-changing HTTP requests due to improper sanitization of user-controlled data in the Markdown JSON table renderer.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| GitLab Product | >= 15.3, < 19.1.8 | 19.1.8 |
| >= 19.2, < 19.2.6 | 19.2.6 | |
| >= 19.3, < 19.3.2 | 19.3.2 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-79