Description
Gitea resolves local reusable workflow files from a fork's head commit when a trusted base-branch workflow runs for a pull_request_target event. A fork author can modify a referenced reusable workflow so attacker-controlled code executes with the repository and organization secrets available to that event. Exploitation requires a base workflow that calls a local reusable workflow, and bypasses the intended separation between trusted base code and untrusted fork code.
Published: 2026-10-14
Score: n/a
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sun, 18 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 18 Oct 2026 04:45:00 +0000

Type Values Removed Values Added
First Time appeared Gitea
Gitea gitea
Vendors & Products Gitea
Gitea gitea

Wed, 14 Oct 2026 15:00:00 +0000

Type Values Removed Values Added
Description Gitea resolves local reusable workflow files from a fork's head commit when a trusted base-branch workflow runs for a pull_request_target event. A fork author can modify a referenced reusable workflow so attacker-controlled code executes with the repository and organization secrets available to that event. Exploitation requires a base workflow that calls a local reusable workflow, and bypasses the intended separation between trusted base code and untrusted fork code.
Title Gitea reusable workflow secret exposure in pull_request_target
Weaknesses CWE-829
CWE-94
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published:

Updated: 2026-10-18T13:33:34.382Z

Reserved: 2026-08-13T16:50:59.749Z

Link: CVE-2026-73800

cve-icon Vulnrichment

Updated: 2026-10-18T13:33:25.423Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T15:17:24.560

Modified: 2026-10-18T14:16:55.687

Link: CVE-2026-73800

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T15:30:17Z

Weaknesses
  • CWE-829

    Inclusion of Functionality from Untrusted Control Sphere

  • CWE-94

    Improper Control of Generation of Code ('Code Injection')