GitLab CE/EE GraphQL Query Denial of Service
CVE-2025-8099 is a denial-of-service vulnerability in GitLab Community Edition (CE) and Enterprise Edition (EE) affecting all versions from 10.8 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4. Under certain conditions, an unauthenticated attacker can send repeated GraphQL queries to the GitLab GraphQL interface and trigger excessive resource consumption, resulting in service degradation or outage. The available supporting content characterizes the issue as a GraphQL resource-allocation/introspection-related DoS, but does not provide function-level root-cause details beyond repeated GraphQL query handling.
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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
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity denial-of-service vulnerability in GitLab’s GraphQL interface that can crash the service via repeated complex queries.
GitLab denial-of-service vulnerability where unauthenticated attackers can overwhelm the server via repeated GraphQL queries.
Unauthenticated denial-of-service via repeated GraphQL introspection queries under certain conditions.
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.