onyx

onyx --cves cve-2026-84739

CVE-2026-84739

HIGHGitLab
score
0.6
cvss
8.7
epss
0.5%
published
2026-09-29
kev added
—
first seen

GitLab CE/EE >= 13.11 and < 19.2.7, 19.3 and < 19.3.3, 19.4 and < 19.4.1 contain a stored XSS caused by improper sanitization of path components in the merge request diff viewer, letting authenticated users execute arbitrary JavaScript in other users' browser sessions, exploit requires user authentication.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2026-09-23 — First advisory — GitLab security releases: GitLab Critical Patch Release: 19.4.1, 19.3.3, 19.2.7A2026-09-29 — PublishedP2026-10-21 — Tracked by OnyxTscore2026-10-21: score 0.60.6epss2026-09-29: epss 0.4%2026-09-30: epss 0.4%2026-10-01: epss 0.4%2026-10-02: epss 0.4%2026-10-03: epss 0.4%2026-10-04: epss 0.4%2026-10-05: epss 0.5%2026-10-06: epss 0.5%2026-10-07: epss 0.5%2026-10-08: epss 0.5%2026-10-09: epss 0.5%2026-10-10: epss 0.5%2026-10-11: epss 0.5%2026-10-12: epss 0.5%2026-10-13: epss 0.5%2026-10-14: epss 0.5%2026-10-15: epss 0.5%2026-10-16: epss 0.5%2026-10-18: epss 0.5%2026-10-19: epss 0.5%2026-10-20: epss 0.5%2026-10-21: epss 0.5%0.5%mentions/day0no mentions in 30 days2026-09-22today
  1. First advisory — GitLab security releases GitLab Critical Patch Release: 19.4.1, 19.3.3, 19.2.7
  2. Published
  3. Tracked by Onyx

Advisories

0 feeds this week

Weaknesses

CWE-79

References 3