libp2p-gossipsub Known Vulnerabilities & Fixes
libp2p-gossipsub has 2 known security vulnerabilities in crates.io (Rust). Upgrade to version 0.49.4 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: 0.49.4
Upgrading to 0.49.4 or later resolves all 2 known vulnerabilities in libp2p-gossipsub. Update Cargo.toml: libp2p-gossipsub = "0.49.4"
Is libp2p-gossipsub in your project?
Check if you're affected and upgrade to 0.49.4 to stay secure.
Security Summary
- 2 affected version ranges have been identified across these 2 advisories.
- 100% of known issues have a published fixed version.
- Remediation: cargo update -p libp2p-gossipsub
Vulnerabilities
2 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Mar 18, 2026, most recently Mar 30, 2026 (12 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-34219 libp2p-gossipsub: Remote crash via unchecked Instant overflow in heartbeat backoff expiry handling | HIGH | All versions | 0.49.4 |
| CVE-2026-33040 Gossipsub PRUNE.backoff Duration Overflow | HIGH | All versions | 0.49.3 |
About This Data
Vulnerability data for libp2p-gossipsub 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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