CVE-2020-10516

9.8 criticalEPSS 1.6%

Critical (9.8) in github github. EPSS 1.6% chance of exploitation in the next 30 days.

An improper access control vulnerability was identified in the GitHub Enterprise Server API that allowed an organization member to escalate permissions and gain access to unauthorized repositories within an organization. This vulnerability affected all versions of GitHub Enterprise Server prior to 2.21 and was fixed in 2.20.9, 2.19.15, and 2.18.20. This vulnerability was reported via the GitHub Bug Bounty program.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWEs: CWE-552, CWE-285
Published: 2020-06-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

github:github

References

https://enterprise.github.com/releases/2.18.20/notes
https://enterprise.github.com/releases/2.19.15/notes
https://enterprise.github.com/releases/2.20.9/notes
https://enterprise.github.com/releases/2.18.20/notes
https://enterprise.github.com/releases/2.19.15/notes

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