🛡️ CVE-2026-15996

⚪ Unknown ✅ No Known Exploit CWE-674 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause excessive CPU consumption and exhaust the pool of request-handling worker processes by sending a crafted form-encoded HTTP POST request containing deeply nested parameters. Because request parameters were parsed before routing and authentication, any POST endpoint could be used to trigger the condition, which could render the instance unresponsive. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.3, 3.19.7, 3.18.10, and 3.17.16.

Affected software

CVE-2026-15996 is recorded against 1 package.

  • unknown

Timeline and source

Published on 5 August 2026 and last revised on 6 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

docs.github.com
docs.github.com
docs.github.com
docs.github.com

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-674
Public Exploit ✅ No
Source NVD
Published 2026-08-05
Updated 2026-08-11
Modified 2026-08-06
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

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