HOMEVULNERABILITIESCVE-2020-10516
CRITICAL

CVE-2020-10516

CWE-285Published: June 3, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-10516 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

GitHub1 product(s)
github
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (6)

→
https://enterprise.github.com/releases/2.18.20/notesRelease Notes · Third Party Advisory
→
https://enterprise.github.com/releases/2.19.15/notesRelease Notes · Third Party Advisory
→
https://enterprise.github.com/releases/2.20.9/notesRelease Notes · Third Party Advisory
→
https://enterprise.github.com/releases/2.18.20/notesRelease Notes · Third Party Advisory
→
https://enterprise.github.com/releases/2.19.15/notesRelease Notes · Third Party Advisory
→
https://enterprise.github.com/releases/2.20.9/notesRelease Notes · Third Party Advisory

Quick Facts

CVE IDCVE-2020-10516
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-285
CISA KEVNo
Affected1 vendor(s)
PublishedJun 3, 2020

Related CVEs (CWE-285)

CVE-2021-31384
10.0
CVE-2020-5206
10.0
CVE-2026-57983
10.0
CVE-2021-37705
10.0
CVE-2022-2595
10.0
CVE-2024-43602
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-10516 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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