CVE-2026-66853 json
Gitea restricted-user organization metadata disclosure
published 2026-10-14 25 d ago modified 2026-10-14 25 d ago also EUVD-2026-101087
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- github.com/go-gitea/gitea#39047 pull request
- github.com/go-gitea/gitea#39058 pull request
- github.com/go-gitea/gitea/releases/tag/v1.27.3 release
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 25 d ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected products
- Gitea Gitea
Classification
References
-
github.com
/go-gitea/gitea/pull/39047
patch
-
github.com
/go-gitea/gitea/pull/39058
patch
-
github.com
/go-gitea/gitea/security/advisories/GHSA-w4wc-g858-3672
vendor-advisory
-
blog.gitea.com
/release-of-1.27.3/
release-notes
-
github.com
/go-gitea/gitea/releases/tag/v1.27.3
release-notes
Sources
- CVE List CVE-2026-66853
- NVD CVE-2026-66853
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