CVE-2026-15423
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:L/I:H/A:N
EPSS — probability of exploitation (30 days)
0.3%
18.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-863
Published 2026-08-12 · modified 2026-08-19
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | L | Low |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2026-08-12 — Published (NVD)
- 2026-08-19 — Last modified (NVD)
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute CI/CD pipelines on a protected branch without the required push permissions due to improper authorization in pipeline reference validation.