CVE-2026-4541 LOW

CVE-2026-4541: janmojzis tinyssh Ed25519 Signature crypto_sign_ed25519_tinyssh.c signature verification

Vendor Janmojzis
Product tinyssh
Weakness CWE-347
Published March 22, 2026
Last update April 18, 2026

CVSS base score

2.0/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 22, 2026 CVE published
April 18, 2026 Record updated