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

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...

blake-streams (0.1.0), fuel-p2p (>=0.4.0, <=0.5.0) +9 more potentially affected by CVE-2026-34219 via libp2p-gossipsub (>=0.28.0, <=0.35.0)

libp2p-gossipsub CARGO version =0.28.0, =0.4.0, =0.20.0, =0.36.0, =0.16.0, =0.1.0, =0.1.1, =0.2.0, =0.39.1, =0.39.3 Source cves: CVE-2026-34219 Source advisory: OSV:GHSA-XQMP-FXGV-XVQ5...

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...

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 Rust implementation of the libp2p Gossipsub networking stack contains a remotely reachable panic in the backoff expiry handling. An attacker can establish a standard session using TCP, Noise...

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 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...

UBUNTU-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...

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

The CVE concerns libp2p-rust Gossipsub: prior to version 0.49.3, the Gossipsub backoff handling accepts attacker-controlled PRUNE backoff values, enabling unchecked time arithmetic that can overflow when updating backoff state. A crafted PRUNE message with a very large backoff (e.g., u64::MAX) ca...

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...

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...

rust-libp2p 输入验证错误漏洞

rust-libp2p is a Rust implementation of the libp2p open-source network stack. Prior to version 0.49.3, rust-libp2p had a vulnerability related to input validation errors. This vulnerability stemmed from the Gossipsub implementation accepting PRUNE evolutions controlled by attackers and potentiall...

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...

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...

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...

blake-streams (0.1.0), fuel-p2p (>=0.4.0, <=0.5.0) +9 more potentially affected by CVE-2026-33040 via libp2p-gossipsub (>=0.28.0, <=0.35.0)

libp2p-gossipsub CARGO version =0.28.0, =0.4.0, =0.20.0, =0.36.0, =0.16.0, =0.1.0, =0.1.1, =0.2.0, =0.39.1, =0.39.3 Source cves: CVE-2026-33040 Source advisory: OSV:GHSA-GC42-3JG7-RXR2...

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...