GitLab CE/EE affecting all · GitLab Has Remediated an Issue
Affects gitlabSource GCVE Database
Not known to be exploited · CVSS 9.9 Critical · fixed in 19.4.1 : patch gitlab as a priority.
Data as of 31 Oct 2026, 01:38 UTC
Thin evidence
One scorer or none| CNA (GitLab) | CVSS 3.1 | 9.9 |
|---|
- Patch
- Available – fixed in 19.4.1, 19.3.3, 19.2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 23 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade gitlab to 19.4.1, 19.3.3 or 19.2.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
RubyGemsgitlabpkg:gem/gitlabOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade affected GitLab CE/EE instances to versions 19.2.7, 19.3.3, or 19.4.1 or later, where the vulnerability has been fixed. No other mitigation or workaround is indicated by the vendor advisory.
Description
A critical vulnerability (CVE-2026-89078) in GitLab CE/EE versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 could allow an authenticated user to execute arbitrary code on the GitLab server. The issue arises from a double free error when parsing a specially crafted regular expression in a CI/CD configuration. GitLab has remediated this vulnerability in versions 19.2.7, 19.3.3, and 19.4.1.
References
- nvd.nist.gov/vuln/detail/CVE-2026-89078 (opens in a new tab)
- hackerone.com/reports/4019059 (opens in a new tab)
- docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released (opens in a new tab)
- gitlab.com/gitlab-org/gitlab/-/work_items/628577 (opens in a new tab)
- ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves (opens in a new tab)