CVE-2026-4541A flaw has been found in janmojzis tinyssh up to 20250501.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/crypto_sign_ed25519_tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local execution. The attack's complexity is rated as high. The exploitability is considered difficult. The exploit has been published and may be used. Upgrading to version 20260301 is recommended to address this issue. Patch name: 9c87269607e0d7d20174df742accc49c042cff17. Upgrading the affected component is recommended.
- CVSS
- 2.5 LOW (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-345, CWE-347
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://github.com/janmojzis/tinyssh/
- https://github.com/janmojzis/tinyssh/commit/9c87269607e0d7d20174df742accc49c042cff17
- https://github.com/janmojzis/tinyssh/issues/101
- https://github.com/janmojzis/tinyssh/issues/101#issue-3983586116
- https://github.com/janmojzis/tinyssh/pull/102
- https://github.com/janmojzis/tinyssh/releases/tag/20260301
- https://vuldb.com/submit/774687
- https://vuldb.com/vuln/352358
- https://vuldb.com/vuln/352358/cti
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.