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CVE-2026-89078

GitLab remote code execution

9.9 CRITICALEPSS 0.44%
  1. Published23 Sept 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Affected products

GitLab19.4.0 · ≥ 19.2.0 < 19.2.7 · ≥ 19.3.0 < 19.3.3

Remediation

Fixed in
GitLab≥ 19.2.7

References

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Frequently asked

Is CVE-2026-89078 being actively exploited?

CVE-2026-89078 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.44%.

How severe is CVE-2026-89078?

CVE-2026-89078 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 0.44% probability of exploitation.

Which products are affected by CVE-2026-89078?

Affected products include GitLab.

How do I fix CVE-2026-89078?

Upgrade affected software to a fixed version, for example GitLab 19.2.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-89078 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.