CVE-2026-73494 blaze: Multiple HTTP/1.1 request-smuggling primitives in blaze's Java wire parser

blaze is a Scala library for building asynchronous pipelines, with a focus on network IO. Prior to 0.23.18 and from 1.0.0-M1 until 1.0.0-M42, five HTTP/1.1 conformance laxities in the hand-written Java parser under http/src/main/java/org/http4s/blaze/http/parser/ can cause blaze to derive a...

CVE-2026-73494

blaze is a Scala library for asynchronous network I/O pipelines. Five HTTP/1.1 conformance laxities in its hand-written Java parser (http/src/main/java/org/http4s/blaze/http/parser/) accept malformed requests—invalid tchar header names, obs-fold lines, unsupported Transfer-Encoding values, duplic...