CVE-2025-27407

criticalcovered by 1 sourcefirst seen 2025-03-12

On March 12, 2025, we released versions 17.9.2, 17.8.5, 17.7.7 for GitLab Community Edition (CE) and Enterprise Edition (EE). These versions contain important bug and security fixes, and we strongly recommend that all self-managed GitLab installations be upgraded to one of these versions immediately. GitLab.com is already running the patched version. GitLab Dedicated customers do not need to take action and will be notified once their instance has been patched. GitLab releases fixes for vulnerabilities in patch releases. There are two types of patch releases: scheduled releases, and ad-hoc critical patches for high-severity vulnerabilities. Scheduled releases are released twice a month on the second and fourth Wednesdays. For more information, you can visit our releases handbook and security FAQ . You can see all of GitLab release blog posts here . For security fixes, the issues detailing each vulnerability are made public on our issue tracker 30 days after the release in which they were patched. We are committed to ensuring all aspects of GitLab that are exposed to customers or that host customer data are held to the highest security standards. As part of maintaining good security hygiene, it is highly recommended that all customers upgrade to the latest patch release for their supported version. You can read more best practices in securing your GitLab instance in our blog post. Recommended Action We strongly recommend that all installations running a version affected by the issues described below are upgraded to the latest version as soon as possible . When no specific deployment type (omnibus, source code, helm chart, etc.) of a product is mentioned, this means all types are affected. Security fixes Table of security fixes Title Severity CVE-2025-25291 and CVE-2025-25292 (third party gem ruby-saml ) Critical CVE-2025-27407 (third party gem graphql ) High Denial of Service Due to Inefficient Processing of Untrusted Input Medium Credentials disclosed when repositor

CSIRTS triage

What: GitLab released critical patch versions containing important bug and security fixes.
Who is affected: All self-managed GitLab installations using affected versions.
Urgency: Remediation is urgent due to the critical nature of the vulnerabilities addressed.
Action: Upgrade to one of the patched versions immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Moderate exploitation risk2.9% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 85% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalGitLab Critical Patch Release: 17.9.2, 17.8.5, 17.7.7gitlab · 2025-03-12

External references

NVD record for CVE-2025-27407

CVE.org record

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