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CVE-2025-14870 is an unauthenticated denial-of-service vulnerability in GitLab Community Edition and Enterprise Edition affecting the Duo Workflows API. The flaw affects versions from 18.5.0 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3. The issue is caused by insufficient input validation and missing bounds on resource consumption when processing specially crafted JSON payloads. An attacker can submit malformed or oversized JSON data to the unauthenticated API endpoint, causing excessive memory or CPU consumption and destabilizing the instance.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity unauthenticated denial-of-service vulnerability in the GitLab Duo Workflows API that can be exploited with crafted payloads to overwhelm the system.
A denial-of-service vulnerability in GitLab that allows unauthenticated users to trigger service disruption via specially crafted requests or JSON payloads to affected APIs.
An unauthenticated denial-of-service vulnerability in GitLab's Duo Workflows API caused by unbounded resource allocation from insufficient JSON input validation.
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.