VULNRABLE / Vulnerability / CVE-2026-54590

CVE-2026-54590

MEDIUM LOW asyncssh GHSA

Exploit verdict: No active-exploit signal

CVSS Score

5.5

Severity

MEDIUM

EPSS

Source

GHSA

Summary

asyncssh has an incomplete fix for CVE-2026-45309 — AuthorizedKeysFile %u still escapes the intended directory via a leading ~ (and weakly via ${EN...

What this means

CVE-2026-54590 is a medium-severity vulnerability affecting asyncssh, rated CVSS 5.5. The EPSS model estimates a 0% probability of exploitation in the next 30 days. Published August 26, 2026.

View full advisory at GHSA →