GHSA-hqqc-jr88-p6x2MediumCVSS 5.3
Netty QUIC hash collision DoS attack
🔗 CVE IDs covered (1)
📋 Description
An issue was discovered in the codec. A hash collision vulnerability (in the hash map used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).
See https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory
🎯 Affected products1
- maven/io.netty.incubator:netty-incubator-codec-quic:< 0.0.71.Final
🔗 References (5)
- https://github.com/netty/netty-incubator-codec-quic/security/advisories/GHSA-hqqc-jr88-p6x2
- https://nvd.nist.gov/vuln/detail/CVE-2025-29908
- https://github.com/netty/netty-incubator-codec-quic/commit/e059bd9b78723f8b035e0c547e42ce263f03461c
- https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory
- https://github.com/advisories/GHSA-hqqc-jr88-p6x2