GitHub Enterprise Server <=3.19: PAT w/o repo scope reads issues via API: CVE-2026-3582 March 2026

Incorrect Authorization in GitHub Enterprise Server allows access to issue and commit search results without repo scope
An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with a classic personal access token (PAT) lacking the repo scope to retrieve issues and commits from private and internal repositories via the search REST API endpoints. The user must have had existing access to the repository through organization membership or as a collaborator for the vulnerability to be exploitable. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.16.15, 3.17.12, 3.18.6 and 3.19.3. This vulnerability was reported via the GitHub Bug Bounty program.

Vulnerability Analysis

CVE-2026-3582 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:

NETWORK

Attack Complexity:

LOW

Privileges Required:

LOW

User Interaction:

NONE

Weakness Type

What is an AuthZ Vulnerability?

The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

CVE-2026-3582 has been classified to as an AuthZ vulnerability or weakness.

Products Associated with CVE-2026-3582

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Affected Versions

Exploit Probability

EPSS

0.25%

Percentile

16.18%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.