CVE-2026-34219

libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to version 0.49.4, the Rust libp2p Gossipsub implementation contains a remotely reachable panic in backoff expiry handling. After a peer sends a crafted PRUNE control message with an attacker-controlled...

CVE-2026-34219 libp2p-gossipsub: Gossipsub PRUNE Backoff Heartbeat Instant Overflow

libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to version 0.49.4, the Rust libp2p Gossipsub implementation contains a remotely reachable panic in backoff expiry handling. After a peer sends a crafted PRUNE control message with an attacker-controlled...

CVE-2026-34219 libp2p-gossipsub: Gossipsub PRUNE Backoff Heartbeat Instant Overflow

libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to version 0.49.4, the Rust libp2p Gossipsub implementation contains a remotely reachable panic in backoff expiry handling. After a peer sends a crafted PRUNE control message with an attacker-controlled...

GHSA-XQMP-FXGV-XVQ5 libp2p-gossipsub: Remote crash via unchecked Instant overflow in heartbeat backoff expiry handling

Description Summary The Rust libp2p Gossipsub implementation contains a remotely reachable panic in backoff expiry handling. After a peer sends a crafted PRUNE control message with an attacker-controlled, near-maximum backoff value, the value is accepted and stored as an Instant near the...

PT-2026-29063

Name of the Vulnerable Software and Affected Versions libp2p-rust versions prior to 0.49.4 Description The libp2p-rust Gossipsub implementation has a flaw where a crafted PRUNE control message with a near-maximum backoff value can cause a panic due to unchecked Instant + Duration arithmetic durin...

CVE-2026-33040

libp2p-rust is the official rust language Implementation of the libp2p networking stack. In versions prior to 0.49.3, the Gossipsub implementation accepts attacker-controlled PRUNE backoff values and may perform unchecked time arithmetic when storing backoff state. A specially crafted PRUNE contr...