CVE-2020-10516: github Improper Authorization
Vulnerability summary
CVE-2020-10516 is a critical (CVSS 9.8) Improper Authorization vulnerability in github. EPSS estimates a 1.59% chance of exploitation in the next 30 days, higher than 75.2% of scored vulnerabilities.
Timeline
- 03-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.59%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.59% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-285Improper AuthorizationThe product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
- CWE-552Files or Directories Accessible to External PartiesThe product makes files or directories accessible to unauthorized actors, even though they should not be.
Affected systems
Github2 products
- github≥ 2.18.0, < 2.18.20 | ≥ 2.19.0, < 2.19.15 | ≥ 2.20.0, < 2.20.9
- github enterprise server≥ 2.20, < 2.20.9 | ≥ 2.19, < 2.19.15 | ≥ 2.18, < 2.18.20
1 vendor · 2 products