CVE-2026-3307

2.7 LOW
Published: April 21, 2026 Modified: April 29, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.25
Source: product-cna@github.com
Release Notes Vendor Advisory
https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.20
Source: product-cna@github.com
Release Notes Vendor Advisory
https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.16
Source: product-cna@github.com
Release Notes Vendor Advisory
https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.13
Source: product-cna@github.com
Release Notes Vendor Advisory
https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.7
Source: product-cna@github.com
Release Notes Vendor Advisory
https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.4
Source: product-cna@github.com
Release Notes Vendor Advisory
https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.1
Source: product-cna@github.com
Release Notes Vendor Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
2.7 / 10.0
EPSS (Exploit Probability)
0.0%
13th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

github