CVE-2026-66853

Gitea's user organization-list API includes Limited-visibility organizations for authenticated restricted accounts without applying the visibility restriction enforced by the single-organization endpoint. A restricted user can list a known user's public organization memberships and retrieve limited organizations' names, descriptions, and avatars. This exposes organization metadata that should be hidden from the requesting account.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://blog.gitea.com/release-of-1.27.3/
https://github.com/go-gitea/gitea/pull/39047
https://github.com/go-gitea/gitea/pull/39058
https://github.com/go-gitea/gitea/releases/tag/v1.27.3
https://github.com/go-gitea/gitea/security/advisories/GHSA-w4wc-g858-3672

Configurations

No configuration.

History

14 Oct 2026, 16:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.3

14 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-14 15:17

Updated : 2026-10-14 16:17

NVD link : CVE-2026-66853

Mitre link : CVE-2026-66853

CVE.ORG link : CVE-2026-66853

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-863

Incorrect Authorization

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