AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

OR
          *cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* versions from (including) 3.18.0 up to (excluding) 3.18.11
          *cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* versions from (including) 3.19.0 up to (excluding) 3.19.8
          *cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* versions from (including) 3.20.0 up to (excluding) 3.20.4
          *cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* versions up to (excluding) 3.17.17

GitHub, Inc. (Products Only): https://docs.github.com/en/[email protected]/admin/release-notes#3.17.17-features Types: Release Notes

GitHub, Inc. (Products Only): https://docs.github.com/en/[email protected]/admin/release-notes#3.18.11-features Types: Release Notes

GitHub, Inc. (Products Only): https://docs.github.com/en/[email protected]/admin/release-notes#3.19.8-features Types: Release Notes

GitHub, Inc. (Products Only): https://docs.github.com/en/[email protected]/admin/release-notes#3.20.4-features Types: Release Notes

{"timestamp":"2026-07-01T15:37:41.106015Z","id":"CVE-2026-9132","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to read source code from private repositories they did not have access to. The
   Copilot pull request description diff summary endpoint accepted a cross-repository comparison range and rendered the resulting diff without verifying that the requesting user was authorized to view
   the target repository. Exploitation required an authenticated account on the instance with read access to at least one repository to use as the comparison base. This vulnerability affected all
   versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.17.17, 3.18.11, 3.19.8, and 3.20.4. This vulnerability was reported via the GitHub Bug Bounty program.

AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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-862

https://docs.github.com/en/[email protected]/admin/release-notes#3.17.17-features

https://docs.github.com/en/[email protected]/admin/release-notes#3.18.11-features

https://docs.github.com/en/[email protected]/admin/release-notes#3.19.8-features

https://docs.github.com/en/[email protected]/admin/release-notes#3.20.4-features

[{"vendor":"GitHub","product":"Enterprise Server","defaultStatus":"unaffected","versions":[{"version":"3.17.0","lessThanOrEqual":"3.17.16","versionType":"semver","status":"affected","changes":[{"at":"3.17.17","status":"unaffected"}]},{"version":"3.18.0","lessThanOrEqual":"3.18.10","versionType":"semver","status":"affected","changes":[{"at":"3.18.11","status":"unaffected"}]},{"version":"3.19.0","lessThanOrEqual":"3.19.7","versionType":"semver","status":"affected","changes":[{"at":"3.19.8","status":"unaffected"}]},{"version":"3.20.0","lessThanOrEqual":"3.20.3","versionType":"semver","status":"affected","changes":[{"at":"3.20.4","status":"unaffected"}]}]}]