CVE-2026-42189

high

Published 2026-05-08 · Modified 2026-05-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

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

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
crates.io	russh	`<0.60.1`	`0.60.1`
RUST	russh	`< 0.60.1`	`0.60.1`

Application impact

Vendor	Product	Versions	Fixed
russh_project	russh	`{"endExcluding":"0.60.1"}`	`0.60.1`
warpgate_project	warpgate	`{"endExcluding":"0.23.1"}`	`0.23.1`

References

CWEs

CWE-770 CWE-789

Community-verified mitigations for this CVE will appear above when contributors publish them.

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