CVE-2021-27904 json
An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139.
published 2021-03-02 5 y ago modified 2026-06-22 4 mo ago also EUVD-2021-14639
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the "all org" flag sometimes provided view access to unintended actors.
Patch / fix
- github.com/MISP/MISP@ca13fee commit
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
References
-
github.com
/MISP/MISP/commit/ca13fee271ad126832c88896776f3050a6c06e64
patch, third-party-advisory
Sources
- CVE List CVE-2021-27904
- NVD CVE-2021-27904
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.