Type Vulnerability
GitLab has addressed a security issue in GitLab CE/EE affecting versions 19.2 prior to 19.2.7, 19.3 prior to 19.3.3, and 19.4 prior to 19.4.1 that could have been exploited under specific conditions.
GitLab
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…
CVE-2026-93577
What this means
This is rated critical severity (9.9 out of 10). There is no confirmed exploitation of it yet. Ask IT whether Gitlab Gitlab is in your estate, and treat that as the priority.
Full vendor 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.
Scoring and exploitation
9.9/ 10
CVSS 3.1 base scoreCritical
Exploitable over the network with a low-privilege account, and no one has to click or open anything. High impact on confidentiality, integrity and availability, and it can reach beyond the vulnerable system.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredLowPR:L
User interactionNoneUI:N
ScopeChangedS:C
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
- ~0.6% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-190
Affected products ()
- Gitlab Gitlab
Show the raw CPE strings (4)
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:gitlab:gitlab:19.4.0:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:19.4.0:*:*:*:enterprise:*:*:*
References
4 links from the CVE record, grouped by site; the vendor's advisory comes first.
docs.gitlab.com1 linkVendor advisory
- patch-release-gitlab-19-4-1-released (opens in a new tab)Release Notes · Vendor Advisory
gitlab.com1 link
- 629758 (opens in a new tab)Issue Tracking
hackerone.com1 link
- 3995696 (opens in a new tab)Permissions Required
ruby-lang.org1 link