CVE-2026-57897
Received Received - Intake

Cross-Repo Information Disclosure via GitHub Actions APIs

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: Gitea Limited

Description
Cross-Repo Information Disclosure via Org-Level Actions Run/Job APIs

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-13
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-57897
EUVD
EUVD-2026-58149

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
go-gitea gitea to 1.27.0 (exc)
go-gitea gitea 1.27.0
gitea gitea to 1.27.0 (exc)
gitea gitea 1.27.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

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Executive Summary

CVE-2026-57897 is a moderate-severity information disclosure vulnerability in Gitea affecting versions 1.26.4 and earlier. It allows authenticated org members to access workflow runs and jobs from all repositories within the organization, including private ones they lack direct access to. The issue stems from insufficient access controls in org-level Actions Run/Job APIs, which only verify org membership and token validity without enforcing repository-specific permissions.

Detection Guidance

Check Gitea server logs for suspicious API requests to org-level Actions Run/Job endpoints. Look for repeated queries from low-privileged users accessing private repository metadata. Verify if Gitea version is 1.26.4 or earlier.

Impact Analysis

This vulnerability could allow low-privileged users to gather sensitive CI/CD metadata such as repository names, commit SHAs, branch names, workflow details, actor identities, and activity timings. Attackers might use this information for reconnaissance, insider threat amplification, or to pivot to other attack vectors within the system.

Mitigation Strategies

Upgrade Gitea to version 1.27.0 or later immediately. Review org member permissions and restrict access to Actions APIs. Monitor for unauthorized data access attempts in logs.

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