Uncaught Exception Affecting rust package, versions *


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.5% (39th percentile)

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  • Snyk IDSNYK-RHEL10-RUST-15563318
  • published14 Mar 2026
  • disclosed10 Mar 2026

Introduced: 10 Mar 2026

CVE-2026-31812  (opens in a new tab)
CWE-248  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 rust.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust package and not the rust package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. Prior to 0.11.14, a remote, unauthenticated attacker can trigger a denial of service in applications using vulnerable quinn versions by sending a crafted QUIC Initial packet containing malformed quic_transport_parameters. In quinn-proto parsing logic, attacker-controlled varints are decoded with unwrap(), so truncated encodings cause Err(UnexpectedEnd) and panic. This is reachable over the network with a single packet and no prior trust or authentication. This vulnerability is fixed in 0.11.14.

CVSS Base Scores

version 3.1