CVE-2026-27775

Published: Jul 3, 2026Modified: Jul 6, 2026Deferred

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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.

Related CWEs

CWE-863

Incorrect Authorization

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. This allows attackers to bypass intended access restrictions.

References (5)

https://blog.gitea.com/release-of-1.26.3-and-1.26.4/

Source: 88ee5874-cf24-4952-aea0-31affedb7ff2

https://github.com/go-gitea/gitea/pull/38151

Source: 88ee5874-cf24-4952-aea0-31affedb7ff2

https://github.com/go-gitea/gitea/releases/tag/v1.26.3

Source: 88ee5874-cf24-4952-aea0-31affedb7ff2

https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7

Source: 88ee5874-cf24-4952-aea0-31affedb7ff2

https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.