CVE-2026-4541 PUBLISHED

janmojzis tinyssh Ed25519 Signature crypto_sign_ed25519_tinyssh.c signature verification

Assigner: VulDB
Reserved: 21.03.2026 Published: 22.03.2026 Updated: 22.03.2026

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. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Metrics

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
CVSS Score: 2

Product Status

Vendor janmojzis
Product tinyssh
Versions
  • Version 20250501 is affected
  • Version 20260301 is unaffected

Credits

  • pythok (VulDB User) reporter

References

Problem Types

  • Improper Verification of Cryptographic Signature CWE
  • Insufficient Verification of Data Authenticity CWE