CVE-2026-27775

Gitea pre-receive hook permission cache allows full repository write access

Gitea 1.25.5 caches a branch-specific write-permission result across multiple refs in one pre-receive hook session, allowing a per-branch maintainer-edit grant to be reused for other refs and escalate to full repository write access.

Affected

Gitea · Gitea Open Source Git Server

CVSS v3.1 CNA

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

EPSS

0.52% chance of exploitation in the next 30 days, 43rd percentile

Published

2026-07-03

Updated

2026-07-06

Proof-of-concept exploits (1)

• advisories/GHSA-649p-mmhf-85c7

References

• CVE Record
• NVD entry