CVE-2026-89078 GitLab - Remote Code Execution

GitLab CE/EE >= 19.2 and < 19.2.7, >= 19.3 and < 19.3.3, >= 19.4 and < 19.4.1 contains a remote code execution caused by a double free issue in regex parsing in CI/CD configuration, letting authenticated users execute arbitrary code on the server.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.44% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Published
24 September 2026
Updated
15 October 2026
Weakness
CWE-415

Vendor fix

Update to GitLab CE/EE 19.2.7, 19.3.3, 19.4.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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