CVE-2026-5512
Essential information
- Published
- 21/04/2026 23:16
- Modified
- 22/04/2026 21:23
- Author
- —
- Creator
- —
- CVSS
- 5.3 MEDIUM (v3) 5.3 MEDIUM (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
—
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Attack requirements
- NONE
- Privileges required
- LOW
- User interaction
- NONE
- Confidentiality (V)
- LOW
- Confidentiality (S)
- NONE
- Integrity (V)
- NONE
- Integrity (S)
- LOW
- Availability (V)
- NONE
- Availability (S)
- NONE
- Exploit maturity
- NOT_DEFINED
Description
An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated attacker to determine the names of private repositories by their numeric ID. The mobile upload policy API endpoint did not perform an early authorization check, and validation error messages included the full repository name for repositories the caller did not have access to. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, and 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program.
NVD status
- Status
- Awaiting Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- [email protected]
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| github / enterprise server | cpe:2.3:a:github:enterprise_server:<3.21:*:*:*:*:*:*:* |
| github / enterprise server | cpe:2.3:a:github:enterprise_server:3.20.1:*:*:*:*:*:*:* |
| github / enterprise server | cpe:2.3:a:github:enterprise_server:3.19.5:*:*:*:*:*:*:* |
| github / enterprise server | cpe:2.3:a:github:enterprise_server:3.18.8:*:*:*:*:*:*:* |
| github / enterprise server | cpe:2.3:a:github:enterprise_server:3.17.14:*:*:*:*:*:*:* |
| github / enterprise server | cpe:2.3:a:github:enterprise_server:3.16.17:*:*:*:*:*:*:* |
| github / enterprise server | cpe:2.3:a:github:enterprise_server:3.15.21:*:*:*:*:*:*:* |
| github / enterprise server | cpe:2.3:a:github:enterprise_server:3.14.26:*:*:*:*:*:*:* |