GHSA-mhvj-jhpq-885v: blaze: Multiple HTTP/1.1 request-smuggling primitives in blaze's Java wire parser
(updated )
Five independent HTTP/1.1 conformance laxities in blaze’s hand-written Java parser (http/src/main/java/org/http4s/blaze/http/parser/) cause request-boundary disagreement with a stricter intermediary. All are reachable from a default BlazeServerBuilder with no non-default configuration.
References
- github.com/advisories/GHSA-mhvj-jhpq-885v
- github.com/http4s/blaze/commit/3f7c022e306631b006dcb43a1d7f65c0d1966f17
- github.com/http4s/blaze/commit/4eec2007806aa9acfefb00ebb636ddc39a147a96
- github.com/http4s/blaze/commit/927b67753a78c13c4445dac9307f511f5c4878c3
- github.com/http4s/blaze/commit/a54bc9cd31758335c7f24e29763622fd03fcf734
- github.com/http4s/blaze/commit/c47d9675f87603f11b32a11d503626bdf9be5c7a
- github.com/http4s/blaze/commit/e871ebb1d27f50c98fd56988526ce42d0fee74d6
- github.com/http4s/blaze/releases/tag/v0.23.18
- github.com/http4s/blaze/releases/tag/v1.0.0-M42
- github.com/http4s/blaze/security/advisories/GHSA-mhvj-jhpq-885v
- nvd.nist.gov/vuln/detail/CVE-2026-73494
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