CVE-2026-5173
Medium
Elevated severity or exploit probability.
CVSS base
8.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
EPSS — probability of exploitation (30 days)
0.4%
36.4th percentile
CISA KEV
Not listed
Weakness / dates
CWE-749
Published 2026-04-08 · modified 2026-07-24
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | L | Low |
| Availability | N | None |
Timeline
- 2026-04-08 — Published (NVD)
- 2026-07-24 — Last modified (NVD)
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to invoke unintended server-side methods through websocket connections due to improper access control.