Type Vulnerability
GitLab has addressed a security issue affecting multiple versions of GitLab CE/EE, including 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4.
GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain…
CVE-2026-19478
What this means
This is rated critical severity (9.4 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 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL directive.
Scoring and exploitation
9.4/ 10
CVSS 3.1 base scoreCritical
Exploitable over the network without any account, and no one has to click or open anything. High impact on integrity and availability; low on confidentiality.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionNoneUI:N
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityLowC:L
IntegrityHighI:H
AvailabilityHighA:H
- ~2.2% 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-94
Affected products ()
- Gitlab Gitlab
Show the raw CPE strings (2)
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
References
3 links from the CVE record, grouped by site; the vendor's advisory comes first.
docs.gitlab.com1 linkVendor advisory
- patch-release-gitlab-19-2-4-released (opens in a new tab)Vendor Advisory
gitlab.com1 link
- 611377 (opens in a new tab)Not Applicable
hackerone.com1 link
- 3926431 (opens in a new tab)Permissions Required