VDB

CVE-2026-110264

CVE-2026-110264 PUBLISHED CVSS 10 CRITICAL

Integer Overflow or Wraparound in GitLab

Reported by gitlab · Published October 22, 2026

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
ruby-3.3Chainguard3.3.12-r10
ruby-4.0Chainguard4.0.7-r6
gitlab-runner-19.3Wolfi19.3.5-r0
ruby-3.4Wolfi3.4.11-r5
ruby-3.3Wolfi3.3.12-r10
rubyAlpine3.4.12-r0, 3.3.13-r0
ruby-4.0Wolfi4.0.7-r6
ruby-3.4Chainguard3.4.11-r5
gitlabgitlab19.5.1, 19.4.3, 19.3.6, 19.2.9, 19.1.9, 19.0.10, 18.11.13

Risk scores

CVSS 3.1
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

VendorProductVersions
GitLabGitLab7.0, 19.0, 19.1
chainguardruby-3.30
chainguardruby-4.00
wolfigitlab-runner-19.30
wolfiruby-3.40
wolfiruby-3.30
alpineruby0, 0
wolfiruby-4.00
chainguardruby-3.40
GitLabGitLab19.2, 19.3, 19.4

Timeline

  • Oct 22, 2026 EPSS Score (4 in total, the first dated here)
  • Oct 22, 2026 Coalition ESS Score
  • Oct 22, 2026 CVE Published
  • Oct 23, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-110264
vulnetix vdb fixes CVE-2026-110264

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-110264/fixes/registry"

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References

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