What’s Vulnerable › Vulnerabilities

CVE-2025-13335: Loop with Unreachable Exit Condition ('Infinite Loop') in GitLab

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-22 · updated 2026-06-17
• Weakness: CWE-835

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.1 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that under certain circumstances could have allowed an authenticated user to create a denial of service condition by configuring malformed Wiki documents that bypass cycle detection.

Affected products

• GitLab: from 17.1.0 before 18.6.4; from 18.7.0 before 18.7.2; from 18.8.0 before 18.8.2 — fixed in 18.6.4, 18.7.2, 18.8.2

How to fix

Upgrade to a fixed version: GitLab 18.6.4, 18.7.2, 18.8.2. Check the vendor advisory for mitigations.

References

• https://about.gitlab.com/releases/2026/01/21/patch-release-gitlab-18-8-2-released/
• https://gitlab.com/gitlab-org/gitlab/-/issues/581060
• https://hackerone.com/reports/3418023

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