Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-2-released/
- https://gitlab.com/gitlab-org/gitlab/-/work_items/621447
- https://hackerone.com/reports/3917471
FAQ
What is CVE-2026-78252?
CVE-2026-78252 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 ha...
How severe is CVE-2026-78252?
CVE-2026-78252 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-78252?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.