5.7

CVE-2026-15007

Denial of service vulnerability in GitHub Enterprise Server allowed service disruption via deeply nested YAML in release notes configuration

A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to cause service disruption by supplying a repository release notes configuration file containing deeply nested YAML. When release notes were generated, the configuration file was parsed without a nesting depth limit, causing excessive resource consumption that could render the instance unresponsive. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.18, 3.18.12, 3.19.9, 3.20.5, and 3.21.3. This vulnerability was reported via the GitHub Bug Bounty program.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerGitHub
≫
Produkt Enterprise Server
Default Statusaffected
Version <= 3.17.17
Version 3.17.0
Status affected
Version <= 3.18.11
Version 3.18.0
Status affected
Version <= 3.19.8
Version 3.19.0
Status affected
Version <= 3.20.4
Version 3.20.0
Status affected
Version <= 3.21.2
Version 3.21.0
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.37% 0.292
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
product-cna@github.com 5.7 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.18
https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.12
https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.9
https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.5
https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.3