Skip to content
CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2025-29908

Netty QUIC hash collision DoS attack

Description

Netty QUIC codec is a QUIC codec for netty which makes use of quiche. 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). This vulnerability is fixed in 0.0.71.Final.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

netty netty-incubator-codec-quic

  • < 0.0.71.Finalaffected

References