CVE-2026-31812
EPSS 0.24%Denial of service in Quinn endpoints
Published: 3/11/2026Modified: 3/14/2026
Description
Receiving QUIC transport parameters containing invalid values could lead to a panic. Unfortunately the maintainers did not properly assess usage of `unwrap()` calls in the transport parameters parsing code, and we did not have sufficient fuzzing coverage to find this issue. We have since added a fuzzing target to cover this code path.
Affected packages (3)
- crates.io/quinn-protofrom 0, < 0.11.14
- crates.io/quinn-proto>= 0.5.0, < 0.11.14
- Debian/rust-quinn-protofrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-31812
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-31812
- PATCHhttps://crates.io/crates/quinn-proto
- PATCHhttps://github.com/quinn-rs/quinn
- WEBhttps://github.com/quinn-rs/quinn/pull/2559
- WEBhttps://github.com/quinn-rs/quinn/security/advisories/GHSA-6xvm-j4wr-6v98
- WEBhttps://rustsec.org/advisories/RUSTSEC-2026-0037.html