High severity7.5NVD Advisory· Published May 7, 2026· Updated May 11, 2026
CVE-2026-7541
CVE-2026-7541
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- docs.github.com/en/enterprise-server@3.16/admin/release-notesnvdRelease NotesVendor Advisory
- docs.github.com/en/enterprise-server@3.17/admin/release-notesnvdRelease NotesVendor Advisory
- docs.github.com/en/enterprise-server@3.18/admin/release-notesnvdRelease NotesVendor Advisory
- docs.github.com/en/enterprise-server@3.19/admin/release-notesnvdRelease NotesVendor Advisory
- docs.github.com/en/enterprise-server@3.20/admin/release-notesnvdRelease NotesVendor Advisory
News mentions
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