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...

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...

CVE-2026-33040: Integer Overflow or Wraparound

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...

PT-2026-26181

Name of the Vulnerable Software and Affected Versions libp2p-rust versions prior to 0.49.3 Description The libp2p-rust Gossipsub implementation is susceptible to a remote, unauthenticated denial-of-service condition. The implementation accepts attacker-controlled PRUNE backoff values and performs...

Uncertainty in Security: Managing Cyber Senescence

My main worry, and the core of my research, is that our cybersecurity ecosystem is slowly but surely aging and getting old and that aging is becoming an operational risk. This is happening not only because of growing complexity, but more importantly because of accumulation of controls and measure...