Medium 4.3Published Oct 14, 2026

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

Updated under an hour ago (2026-10-19 05:50 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 4.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-200, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Gitea
NVD analysis: Deferred
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Gitea Gitea gitea:gitea (from the name)	through 1.27.2	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.