CVE-2026-27775

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://blog.gitea.com/release-of-1.26.3-and-1.26.4/
https://github.com/go-gitea/gitea/pull/38151
https://github.com/go-gitea/gitea/releases/tag/v1.26.3
https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7
https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7

Configurations

No configuration.

History

06 Jul 2026, 16:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
References	~~() https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7 -~~	() https://github.com/go-gitea/gitea/security/advisories/GHSA-649p-mmhf-85c7 -

03 Jul 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-03 21:16

Updated : 2026-07-06 18:17

NVD link : CVE-2026-27775

Mitre link : CVE-2026-27775

CVE.ORG link : CVE-2026-27775

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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