Description

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.

INFO

Published Date :

2026-03-10T21:04:36.812Z

Last Modified :

2026-03-11T15:19:29.150Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-31812 vulnerability.

Vendors Products
Quinn-rs
  • Quinn
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31812.

URL Resource
https://github.com/quinn-rs/quinn/security/advisories/GHSA-6xvm-j4wr-6v98 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-31812 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-31812 cve-icon
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CVSS Vulnerability Scoring System

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Detailed values of each vector for above chart.
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