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CVE-2026-73495 blaze: Chunked-body trailer fields promoted into Request.headers in blaze-server (front-end header-sanitization bypass)

🗓️ 12 Aug 2026 21:11:55Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

blaze-server prior to 0.23.18 and 1.0.0-M42 merges attacker-controlled chunked-body trailer fields into Request.headers, bypassing front-end proxy header sanitization.

Related
Affected
Refs
[
  {
    "vendor": "http4s",
    "product": "blaze",
    "versions": [
      {
        "version": "< 0.23.18",
        "status": "affected"
      },
      {
        "version": ">= 1.0.0-M1, < 1.0.0-M42",
        "status": "affected"
      }
    ]
  }
]

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