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CRITICAL

CVE-2026-89078

CVSS v3

9.9

CRITICAL

EPSS Score

0.4 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary code on the GitLab server due to a double free issue when parsing a specially crafted regular expression in a CI/CD configuration.

Technical details

Published
2026-09-24
Last Modified
2026-09-25

Frequently asked questions

What is CVE-2026-89078?

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary code on the GitLab server due to a double free issue when parsing a specially crafted regular expression in a CI/CD configuration.

Is CVE-2026-89078 actively exploited?

Active exploitation of CVE-2026-89078 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-89078?

CVE-2026-89078 has a CVSS v3 base score of 9.9 (CRITICAL severity).

Is CVE-2026-89078 affecting your environment?

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