{"cve":"CVE-2026-15007","nvd":{"published":"2026-07-17T16:17:13.743","modified":"2026-10-24T20:10:00.137","status":"Deferred","description":"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.","cvss_v4":{"vector":"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","score":5.7},"cvss_v3":null,"cwes":["CWE-770"],"references":["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"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-15007","score":0.00636,"percentile":0.50181,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}