Deserialization of Untrusted Data vulnerability in GitHub Enterprise Server leading to Remote Code Execution
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-502.
Summary
A deserialization of untrusted data vulnerability was identified in GitHub Enterprise Server that could potentially lead to remote code execution on the SVNBridge. To exploit this vulnerability, an attacker would need to gain access via a server-side request forgery (SSRF) that would let an attacker control the data being deserialized. This vulnerability affected all versions of GitHub Enterprise Server prior to v3.6 and was fixed in versions 3.5.3, 3.4.6, 3.3.11, and 3.2.16. This vulnerability was reported via the GitHub Bug Bounty program.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GitHub | GitHub Enterprise Server | 3.2 to before 3.2.16; 3.3 to before 3.3.11; 3.4 to before 3.4.6; 3.5 to before 3.5.3 | 3.2.16, 3.3.11, 3.4.6, 3.5.3 | Patch available | CNA |
- GitHub Enterprise Server VendorGitHub Affected 3.2 to before 3.2.16; 3.3 to before 3.3.11; 3.4 to before 3.4.6; 3.5 to before 3.5.3 Fixed in 3.2.16, 3.3.11, 3.4.6, 3.5.3 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* | before 3.2.16; 3.3.0 to before 3.3.11; 3.4.0 to before 3.4.6; 3.5.0 to before 3.5.3 | Vulnerable | GitHub |
- cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* Versions before 3.2.16; 3.3.0 to before 3.3.11; 3.4.0 to before 3.4.6; 3.5.0 to before 3.5.3 Vulnerable ·GitHub
Remediation
- Fix · CNA GitHub Enterprise Server (GitHub) Fixed in 3.2.16, 3.3.11, 3.4.6, 3.5.3
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23734
- 2026-10-03 Alias added: GHSA-rcm9-3jwh-7pxx
References
Other 4
- https://docs.github.com/en/enterprise-server%403.3/admin/release-notes#3.3.11
- https://docs.github.com/en/enterprise-server%403.4/admin/release-notes#3.4.6
- https://docs.github.com/en/enterprise-server%403.5/admin/release-notes#3.5.3
- https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.16
More GitHub Enterprise Server vulnerabilities
- TI-2024-04632 An authentication bypass vulnerability was present in the GitHub Enterprise Server (GHES)… CVSS 4.0CRITICAL 10.0
- TI-2024-00181 Unsafe Reflection in Github Enterprise Server leading to Command Injection CVSS 3.1CRITICAL 9.8
- TI-2024-00466 Privilege Escalation by Code Injection in the Management Console in GitHub Enterprise Server CVSS 3.1HIGH 8.8
- TI-2026-03340 Remote code execution via git push option injection in GitHub Enterprise Server CVSS 4.0HIGH 8.7
- TI-2024-08804 Improper signature verification in GitHub Enterprise Server CVSS 4.0CRITICAL 9.5
- TI-2026-08177 Server-side request forgery in GitHub Enterprise Server CVSS 4.0CRITICAL 9.2
Sources
- CVE-2022-23734 · CVE Program
- CVE-2022-23734 · NVD
- FIRST EPSS
- GHSA-rcm9-3jwh-7pxx · GitHub Advisory Database · CC BY 4.0
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