UBUNTU-CVE-2026-61544

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Source
https://ubuntu.com/security/CVE-2026-61544
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61544.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-61544
Upstream
Published
2026-09-17T00:00:00Z
Modified
2026-09-17T13:30:08Z
Severity
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:26.04:LTS / rust-libp2p-identity

Package

Name
rust-libp2p-identity
Purl
pkg:deb/ubuntu/rust-libp2p-identity?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.2.10+20250205+ds-1
0.2.12+20250805+ds-2
0.2.13+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-libp2p-identity-dev",
            "binary_version": "0.2.13+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61544.json"