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Description

An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with a classic personal access token (PAT) lacking the repo scope to retrieve issues and commits from private and internal repositories via the search REST API endpoints. The user must have had existing access to the repository through organization membership or as a collaborator for the vulnerability to be exploitable. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.16.15, 3.17.12, 3.18.6 and 3.19.3. This vulnerability was reported via the GitHub Bug Bounty program.

PUBLISHED Reserved 2026-03-05 | Published 2026-03-10 | Updated 2026-03-11 | Assigner GitHub_P




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-862 Missing Authorization

Product status

Default status
affected

3.16.0 (semver)
affected

3.17.0 (semver)
affected

3.18.0 (semver)
affected

3.19.0 (semver)
affected

Credits

Sergej Ljubojevic finder

References

docs.github.com/...nterprise-server@3.16/admin/release-notes

docs.github.com/...nterprise-server@3.17/admin/release-notes

docs.github.com/...nterprise-server@3.18/admin/release-notes

docs.github.com/...nterprise-server@3.19/admin/release-notes

cve.org (CVE-2026-3582)

nvd.nist.gov (CVE-2026-3582)

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