CVE-2026-73800

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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-25)

CWEs

CWE-94, CWE-829

Published

2026-10-14

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

References

• https://blog.gitea.com/release-of-1.27.2/
• https://github.com/go-gitea/gitea/pull/38886
• https://github.com/go-gitea/gitea/pull/38897
• https://github.com/go-gitea/gitea/releases/tag/v1.27.2
• https://github.com/go-gitea/gitea/security/advisories/GHSA-r9ch-mqjm-g67v

Check your stackJSON