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russh has pre-auth DoS via unbounded allocation in its keyboard-interactive auth handler

russh has pre-auth DoS via unbounded allocation in its keyboard-interactive auth handler

CVE-2026-42189Published 4 months agoUpdated 5 days agoSource: OSV

Affected packages

russh

Exploit signal

Known exploited (CISA KEV): No
EPSS score: —
EPSS percentile: —

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.

Sources

Structured record: https://osv.dev/vulnerability/GHSA-f5v4-2wr6-hqmg

Recommended response stack

Snyk — Scan your dependencies in CI and fix this vulnerability.→

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russh has pre-auth DoS via unbounded allocation in its keyboard-interactive auth handler | HackTribune