russh Known Vulnerabilities & Fixes
russh has 10 known security vulnerabilities in crates.io (Rust). Upgrade to version 0.63.2 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 0.63.2
Upgrading to 0.63.2 or later resolves all 10 known vulnerabilities in russh. Update Cargo.toml: russh = "0.63.2"
Is russh in your project?
Check if you're affected and upgrade to 0.63.2 to stay secure.
Security Summary
- 11 affected version ranges have been identified across these 10 advisories.
- 100% of known issues have a published fixed version.
- Remediation: cargo update -p russh
Vulnerabilities
10 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Aug 14, 2024, most recently Sep 30, 2026 (777 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-46673 Russh: Unchecked CryptoVec allocation and growth handling is reachable | HIGH | All versions | 0.60.3, 0.60.3 |
| CVE-2026-102823 russh: Client-side channel-scoped Handler callbacks fire for channel IDs the client never opened | HIGH | All versions | 0.63.1 |
| CVE-2026-48110 Russh SSH message fields were decoded through allocation-first parsers before field-specific bounds | HIGH | All versions | 0.61.0 |
| CVE-2026-46702 russh: Post-decompression SSH packet size was not bounded, allowing remote oversized compressed packets | HIGH | All versions | 0.61.1 |
| CVE-2026-42189 russh has pre-auth DoS via unbounded allocation in its keyboard-interactive auth handler | HIGH | All versions | 0.60.1 |
| CVE-2024-43410 Russh has an OOM Denial of Service due to allocation of untrusted amount | HIGH | All versions | 0.44.1 |
| CVE-2025-54804 russh is missing overflow checks during channel windows adjust | MEDIUM | All versions | 0.54.1 |
| CVE-2026-102821 Russh: Unbounded memory exhaustion via CHANNEL_OPEN flood during a client-stalled rekey | MEDIUM | All versions | 0.63.2 |
| CVE-2026-68930 Russh: Channel-scoped server callbacks can be reached without an open channel | MEDIUM | All versions | 0.62.5 |
| CVE-2026-48107 Russh: Unchecked keyboard-interactive prompt count in client auth path | MEDIUM | All versions | 0.61.0 |
About This Data
Vulnerability data for russh is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related crates.io (Rust) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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