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CVE-2026-61544GHSA-5HQ8-QHWW-JM7Q

libp2p-quic: Remote panic via certificate expiry race during QUIC handshake

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.13.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: partial

Summary

libp2p-rust is the official Rust language implementation of the libp2p networking stack. Prior to 0.13.1, libp2p-quic could panic during an inbound QUIC handshake when a remote peer presented a valid short-lived libp2p TLS certificate and delayed the final TLS 1.3 handshake fragment until after the certificate expired. In the Quinn post-handshake upgrade path, transports/quic/src/connection/connecting.rs called libp2p_tls::certificate::parse a second time in remote_peer_id and used expect on the result. The repeated wall-clock validity check could reject the now-expired certificate, causing the expect call to terminate any application exposing an affected libp2p-quic listener. This vulnerability is fixed in 0.13.1.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • libp2p rust-libp2p

    fixed in 0.13.1

  • libp2p-quiccrates.io

    fixed in 0.13.1

References 4

GitHub · libp2p/rust-libp2p