Uncaught Exception Affecting rust-yamux package, versions <0.13.10+ds-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.47% (41st percentile)

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  • Snyk IDSNYK-DEBIAN14-RUSTYAMUX-15669481
  • published16 Mar 2026
  • disclosed16 Mar 2026

Introduced: 16 Mar 2026

CVE-2026-32314  (opens in a new tab)
CWE-248  (opens in a new tab)

How to fix?

Upgrade Debian:14 rust-yamux to version 0.13.10+ds-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-yamux package and not the rust-yamux package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

Yamux is a stream multiplexer over reliable, ordered connections such as TCP/IP. Prior to 0.13.10, the Rust implementation of Yamux can panic when processing a crafted inbound Data frame that sets SYN and uses a body length greater than DEFAULT_CREDIT (e.g. 262145). On the first packet of a new inbound stream, stream state is created and a receiver is queued before oversized-body validation completes. When validation fails, the temporary stream is dropped and cleanup may call remove(...).expect("stream not found"), triggering a panic in the connection state machine. This is remotely reachable over a normal Yamux session and does not require authentication. This vulnerability is fixed in 0.13.10.

CVSS Base Scores

version 3.1