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CVE-2024-2440· NVD / CVE Program· CNA GitHub_P

Race Condition was identified in GitHub Enterprise Server that allowed maintaining admin permissions

A race condition in GitHub Enterprise Server allowed an existing admin to maintain permissions on a detached repository by making a GraphQL mutation to alter repository permissions while the repository is detached. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.13 and was fixed in versions 3.9.13, 3.10.10, 3.11.8 and 3.12.1. This vulnerability was reported via the GitHub Bug Bounty program.

MediumCVSS 5.9 · v3.1—No exploit Fix available
Published
Apr 19, 2024
Updated
Jun 17, 2026
EPSS
0.5% · 37th percentile
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Report tools

JSON

Action score

23

Monitor

Low priority for now.

CVSS
23 / 40 · 5.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.9
CNA · GitHub_P
5.5
0.4 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
githubenterprise server

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • github enterprise serverbefore 3.9.13
  • github enterprise server3.10.0 and later · before 3.10.10
  • github enterprise server3.11.0 and later · before 3.11.8
  • github enterprise server3.12.0 and later · before 3.12.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_P). Independent of NVD's CPE analysis and usually ahead of it.

  • GitHub Enterprise Server

    • 3.9 and later · up to and including 3.9.12affected · semverfixed in 3.9.13
    • 3.10 and later · up to and including 3.10.9affected · semverfixed in 3.10.10
    • 3.11 and later · up to and including 3.11.7affected · semverfixed in 3.11.8
    • 3.12 and later · up to and including 3.12.0affected · semverfixed in 3.12.1

Same product

github: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-0200Unsafe Reflection in Github Enterprise Server leading to Command Injection
    61This week
  • CVE-2024-0507Privilege Escalation by Code Injection in the Management Console in GitHub Enterprise Server
    55Plan
  • CVE-2024-9487An Improper Verification of Cryptographic Signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed
    46Plan
  • CVE-2024-4985An authentication bypass vulnerability was present in the GitHub Enterprise Server (GHES) when utilizing SAML single sign-on authentication
    41Plan
  • CVE-2022-23739Incorrect authorization check in GitHub Enterprise Server leading to escalation of privileges in GraphQL API requests from GitHub Apps using scoped user-to-serv
    39Monitor
  • CVE-2022-46255Improper Limitation of a Pathname to a Restricted Directory in GitHub Enterprise Server leading to RCE
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
GitHub Enterprise Server3.10.10Vendor (CNA)
GitHub Enterprise Server3.11.8Vendor (CNA)
GitHub Enterprise Server3.12.1Vendor (CNA)
GitHub Enterprise Server3.9.13Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-46649120 days apartRace Condition allows Administrative Access on Organization Repositories
    28Monitor
  • CVE-2023-6803120 days apartRace Condition allows Unauthorized Outside Collaborator
    16Monitor
  • CVE-2023-6690120 days apartA race condition in GitHub Enterprise Server allowed an existing admin to maintain permissions on transferred repositories by making a Graph
    8Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records