Denial of Service in GitLab CE/EE Wiki Redirects
CVE-2025-13335 is a denial-of-service vulnerability in GitLab Community Edition (CE) and Enterprise Edition (EE) affecting all versions from 17.1 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2. The issue is described as an infinite loop condition in Wiki redirects: under certain circumstances, an authenticated user can configure malformed Wiki documents that bypass cycle detection, causing redirect processing to loop indefinitely and resulting in a denial-of-service condition.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A medium-severity denial-of-service (DoS) vulnerability in GitLab (content suggests malformed Wiki documents may be an exploitation vector, but does not map it to a specific CVE).
A GitLab CE/EE denial-of-service vulnerability triggered by malformed Wiki documents that bypass cycle detection.
A medium-severity denial-of-service issue in GitLab Wiki redirects where malformed Wiki documents can trigger an infinite loop (bypassing cycle detection).
Medium-severity denial-of-service vulnerability in GitLab involving malformed Wiki documents that bypass cycle detection.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.