CVE-2026-56355 json
GNU Savannah Administration Savane through 3.17 uses untrusted data as part of authorization.
published 4mo ago modified 17d ago also EUVD-2026-38135
- cvss
- 3.7
- 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 35%
- public exploits
- 0
- none known
Summary
GNU Savannah Administration Savane through 3.17 uses untrusted data as part of authorization.
Is CVE-2026-56355 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- GNU Savane
Classification
- Weakness
-
- CWE-696 Incorrect Behavior Order
References
- cgit.git.savannah.gnu.org /cgit/administration/savane.git/tree/frontend/php/file.php?h=release-3.17#n113
- cgit.git.savannah.gnu.org /cgit/administration/savane.git/tree/frontend/php/file.php?h=release-3.17#n123
- fsf.org /news/statement-regarding-gnu-savannah-security-reports
- hacktron.ai
- mallory.ai /stories/019ee445-bdd4-7775-93b5-a8faaf5c2eb7
- news.ycombinator.com /item?id=48605220
Sources
- CVE List CVE-2026-56355
- NVD CVE-2026-56355
Fencer Intel 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.