Security Advisory

CVE-2026-7541

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-07 21:18:35

Last updated 2026-05-08 13:44:52

Assigner GitHub_P

CVSS score 6.3

State PUBLISHED

Description

A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause service disruption by sending crafted requests with deeply nested JSON payloads to an unauthenticated API endpoint. The endpoint parsed user-controlled JSON request bodies without size or depth limits, causing excessive CPU and memory consumption. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.2, 3.19.6, 3.18.9, 3.17.15, and 3.16.18. This vulnerability was reported via the GitHub Bug Bounty program.

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