Vulnerability · Published Oct 14, 2026 · Assigned by Gitea

CVE-2026-66853Gitea restricted-user organization metadata disclosure

Medium 4.3

In plain English

A medium-severity information exposure in Gitea from Gitea. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.4%top 68.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Gitea	Gitea	0 – through 1.27.2

Weakness: CWE-200, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory GHSA-w4wc-g858-3672 vendor-advisory
Gitea 1.27.3 release announcement release-notes
Fix: go-gitea/gitea pull request #39047 patch
Fix: go-gitea/gitea pull request #39058 patch
go-gitea/gitea v1.27.3 release release-notes