CVE catalog
CVE-2026-4541
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 manipulati
- Severity
- Low · CVSS 2
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.08% · Oct 25, 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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tinyssh | sid | 20261001-2 | fixed |
| Debian | tinyssh | forky | 20261001-2 | fixed |
| Debian | tinyssh | trixie | 20250501-1 | vulnerable |
| Debian | tinyssh | bookworm | 20230101-1 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tinyssh | source | sid | 20260301-1 | unimportant | Not reported | Not reported |
| Debian | tinyssh | source | forky | 20260301-1 | unimportant | Not reported | Not reported |
| Debian | tinyssh | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | tinyssh | source | bookworm | Not affected | unimportant | Not reported | Not reported |