CVE catalog
CVE-2026-3307
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed an attacker with admin access on one repository to modify the secret scanning push protection delegated by
- Severity
- Medium · CVSS 5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/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 - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.27% · Oct 25, 2026
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed an attacker with admin access on one repository to modify the secret scanning push protection delegated bypass reviewer list on another repository by manipulating the owner_id parameter in the request body. Authorization was verified against the repository in the URL, but the action was applied to a different repository specified in the request body. The impact is limited to assigning existing trusted users as bypass reviewers; it does not allow adding arbitrary external users. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7, 3.19.4 and 3.20.1. This vulnerability was reported via the GitHub Bug Bounty program.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | enterprise_server | Not reported | 3.14.26 | fixed |
| Cpe | enterprise_server | Not reported | 3.15.21 | fixed |
| Cpe | enterprise_server | Not reported | 3.16.17 | fixed |
| Cpe | enterprise_server | Not reported | 3.17.14 | fixed |
| Cpe | enterprise_server | Not reported | 3.18.8 | fixed |
| Cpe | enterprise_server | Not reported | 3.19.5 | fixed |
| Cpe | enterprise_server | Not reported | Not reported | unknown |
| Cpe | enterprise_server | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | enterprise_server | cpe | Not reported | 3.14.26 | Not reported | Not reported | Not reported |
| Cpe | enterprise_server | cpe | Not reported | 3.15.21 | Not reported | Not reported | Not reported |
| Cpe | enterprise_server | cpe | Not reported | 3.16.17 | Not reported | Not reported | Not reported |
| Cpe | enterprise_server | cpe | Not reported | 3.17.14 | Not reported | Not reported | Not reported |
| Cpe | enterprise_server | cpe | Not reported | 3.18.8 | Not reported | Not reported | Not reported |
| Cpe | enterprise_server | cpe | Not reported | 3.19.5 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.25]
- [https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.20]
- [https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.16]
- [https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.13]
- [https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.7]
- [https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.4]
- [https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.1]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-3307]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1231.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)]