Critical severity · published Sep 23, 2026
CVE-2026-93577
Integer Overflow or Wraparound in GitLab
9.9
CVSS
0.6%
EPSS
No
On KEV
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 an integer overflow issue when compiling a specially crafted regular expression in a CI/CD configuration.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
19.2 before 19.2.7; 19.3 before 19.3.3; 19.4 before 19.4.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93577
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-93577
Release Notes
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/
Issue Tracking
https://gitlab.com/gitlab-org/gitlab/-/work_items/629758
Permissions Required
https://hackerone.com/reports/3995696
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