Kritisch 9.8Software
CVE-2026-77987
A server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterprise Server.
Enterprise Server
A server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterprise Server. The notebook viewer validated the scheme and host of a user-supplied URL but did not validate the port, allowing requests to be directed to internal services listening on other ports of the same appliance. Response bodies were not returned to the requester, but response timing acted as an oracle that allowed instance secrets to be extracted character by…
22. Sep 2026
Original bei NVD öffnenAusgewertete Quellen
- NVDCVE-2026-77987
- GitHubhttps://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.21
- GitHubhttps://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.15
- GitHubhttps://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.12
- GitHubhttps://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.8
- GitHubhttps://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.6
- GitHubhttps://docs.github.com/en/enterprise-server@3.22/admin/release-notes#3.22.1