CVE-2026-42189

high
Published 2026-05-08 · Modified 2026-05-13
CVSS v3
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2
VIR risk
7.5

Description

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

Predictions

Exploit likelihood
83%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: security-advisories@github.com — https://github.com/Eugeny/russh/security/advisories/GHSA-f5v4-2wr6-hqmg

vendor Authored 2026-05-27

Vendor advisory: security-advisories@github.com — https://github.com/Eugeny/russh/releases/tag/v0.60.1

vendor Authored 2026-05-27

Vendor advisory: security-advisories@github.com — https://github.com/Eugeny/russh/commit/6c3c80a9b6d60763d6227d60fa8310e57172a4d1

Package impact

EcosystemPackageVulnerableFixed
rust crates.iorussh<0.60.10.60.1
rust RUSTrussh< 0.60.10.60.1

Application impact

VendorProductVersionsFixed
russh_projectrussh{"endExcluding":"0.60.1"}0.60.1
warpgate_projectwarpgate{"endExcluding":"0.23.1"}0.23.1

References

CWEs

CWE-770 CWE-789

Verify integrity in audit chain (admin only). AS-IS.