CVE-2026-4541

LOW 2.5

janmojzis tinyssh Ed25519 Signature crypto_sign_ed25519_tinyssh.c signature verification

CVSS Score

2.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-347 CWE-345
Vendor	janmojzis
Product	tinyssh
Published	Mar 22, 2026
Last Updated	Apr 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

janmojzis / tinyssh

20250501

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/352358 vuldb.com: https://vuldb.com/vuln/352358/cti vuldb.com: https://vuldb.com/submit/774687 github.com: https://github.com/janmojzis/tinyssh/issues/101 github.com: https://github.com/janmojzis/tinyssh/pull/102 github.com: https://github.com/janmojzis/tinyssh/issues/101#issue-3983586116 github.com: https://github.com/janmojzis/tinyssh/commit/9c87269607e0d7d20174df742accc49c042cff17 github.com: https://github.com/janmojzis/tinyssh/releases/tag/20260301 github.com: https://github.com/janmojzis/tinyssh/

Credits

🔍 pythok (VulDB User)