An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10…
GitLab · GitLab
GitLab CE/EE contains an integer overflow flaw (CWE: Integer Overflow or Wraparound) in how the product compiles regular expressions. An attacker can exploit it by submitting a specially crafted regular expression over the network without authentication, and under certain conditions this can lead to arbitrary code execution on the GitLab server.
An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.
- Exploited
- Not confirmed
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
Public exploit code (PoC-in-GitHub) was available the same day.
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 6 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- Known_Cve | Oct 30, 2026 | Part 1/229 Oct 2026
- Known_Cve | Oct 29, 2026 | Part 2/328 Oct 2026
- Known_Cve | Oct 28, 2026 | Part 2/327 Oct 2026
- Known_Cve | Oct 27, 2026 | Part 2/326 Oct 2026
- Known_Cve | Oct 24, 2026 | Part 3/323 Oct 2026
- Known_Cve | Oct 23, 2026 | Part 3/322 Oct 2026