Critical [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
This critical-severity GitLab advisory covers CVE-2026-89078 affecting GitLab.
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Summary
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.
- before 19.2.7
- before 19.3.3
- before 19.4.1
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
- 19.2.7
- 19.3.3
- 19.4.1
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
Mitigation
Upgrade to a fixed release: 19.2.7, 19.3.3, 19.4.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 21 days ago·verify at source
Discussion(0)
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