High severity · published Jul 3, 2026
CVE-2026-27775
Gitea pre-receive hook permission cache allows full repository write access
8.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
Gitea Open Source Git Server · Gitea
1.25.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27775
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27775
blog.gitea.com
https://blog.gitea.com/release-of-1.26.3-and-1.26.4/
github.com
https://github.com/go-gitea/gitea/pull/38151
github.com
https://github.com/go-gitea/gitea/releases/tag/v1.26.3
github.com
https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7
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