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CVE-2023-6803

Race Condition allows Unauthorized Outside Collaborator

MEDIUM
4
CVSS Score
Published: December 21, 2023 at 08:45 PM UTC
Updated: June 17, 2026 at 06:51 AM UTC
1 product affected across 1 vendorGitHub Enterprise Server

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Severity
MEDIUM4
Exploit prediction
EPSS 0.2%

Description

A race condition in GitHub Enterprise Server allows an outside collaborator to be added while a repository is being transferred. This vulnerability affected all versions of GitHub Enterprise Server since 3.8 and was fixed in version 3.8.12, 3.9.7, 3.10.4, and 3.11.1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GitHub Enterprise Server· GitHubgithub-action
95%
3.10 ≤ v ≤ 3.10.33.10.0 ≤ v < 3.10.43.8 ≤ v ≤ 3.8.113.8.0 ≤ v < 3.8.123.9 ≤ v ≤ 3.9.63.9.0 ≤ v < 3.9.73.103.113.11.03.83.9
Affected range stops below 3.10.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.8.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.9.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Release Notes
Source: [email protected]
https://docs.github.com/en/[email protected]/admin/release-notes#3.10.4
Release Notes
Source: [email protected]
https://docs.github.com/en/[email protected]/admin/release-notes#3.11.1
Release Notes
Source: [email protected]
https://docs.github.com/en/[email protected]/admin/release-notes#3.8.12
Release Notes
Source: [email protected]
https://docs.github.com/en/[email protected]/admin/release-notes#3.9.7

CVSS

4MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-367

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