CVE-2026-34219

CVE-2026-34219 affects libp2p-rust’s libp2p-gossipsub: prior to 0.49.4, Gossipsub’s backoff expiry handling can overflow when adding Slack to an Instant, after a crafted PRUNE with attacker-controlled backoff. This remotely reachable panic is triggered in heartbeat processing and is exploitable o...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-33040

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libp2p-rust is the official rust language Implementation of the libp2p networking stack. In versions prior to 0.49.3, the Gossipsub implementation accepts...

CVE-2026-33040 libp2p-rust: Gossipsub PRUNE.backoff Duration Overflow

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...

CVE-2026-33040 libp2p-rust: Gossipsub PRUNE.backoff Duration Overflow

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...

Gossipsub PRUNE.backoff Duration Overflow

Summary The Rust libp2p Gossipsub implementation accepts attacker-controlled PRUNE backoff values and may perform unchecked time arithmetic when storing backoff state. A specially crafted PRUNE control message with an extremely large backoff e.g. u64::MAX can lead to Duration/Instant overflow...

GHSA-GC42-3JG7-RXR2 Gossipsub PRUNE.backoff Duration Overflow

Summary The Rust libp2p Gossipsub implementation accepts attacker-controlled PRUNE backoff values and may perform unchecked time arithmetic when storing backoff state. A specially crafted PRUNE control message with an extremely large backoff e.g. u64::MAX can lead to Duration/Instant overflow...