CVE-2026-107686 json
Gitea reactions accepted on locked issues and comments
published 2026-10-18 21 d ago modified 2026-10-29 10 d ago also EUVD-2026-103987
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
The Gitea web handlers for adding and removing reactions on issues and comments did not refuse locked issues for users without write access, although the API did. A signed-in user who could read an issue could therefore add or remove reactions on a locked issue and its comments, bypassing the interaction restriction of the lock. Only reactions were affected; no content could be changed.
Patch / fix
- github.com/go-gitea/gitea#39839 pull request
- github.com/go-gitea/gitea#39847 pull request
- github.com/go-gitea/gitea/releases/tag/v28.2.0 release
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 d ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 14% 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:N/I:L/A:N |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- Gitea Gitea
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/go-gitea/gitea/pull/39839
patch
-
github.com
/go-gitea/gitea/pull/39847
patch
-
github.com
/go-gitea/gitea/security/advisories/GHSA-wx44-9m3m-rjqx
vendor-advisory
-
blog.gitea.com
/release-of-28.2.0/
release-notes
-
github.com
/go-gitea/gitea/releases/tag/v28.2.0
release-notes
Sources
- CVE List CVE-2026-107686
- NVD CVE-2026-107686
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.