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CVE-2026-66731 facil.io 0.7.5 - 0.7.6 HTTP/1.1 Chunked Transfer Encoding Parser Crash DoS

🗓️ 27 Jul 2026 16:57:01Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

CVE-2026-66731 allows attackers to crash facil.io by sending a negative chunk size in the Transfer Encoding header.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-66731
27 Jul 202616:57
cve
EUVD
EUVD-2026-49360
27 Jul 202616:57
euvd
NVD
CVE-2026-66731
27 Jul 202617:16
nvd
Vulnrichment
CVE-2026-66731 facil.io 0.7.5 - 0.7.6 HTTP/1.1 Chunked Transfer Encoding Parser Crash DoS
27 Jul 202616:57
vulnrichment
[
  {
    "defaultStatus": "affected",
    "vendor": "boazsegev",
    "product": "facil.io",
    "packageURL": "pkg:github/boazsegev/facil.io",
    "repo": "https://github.com/boazsegev/facil.io",
    "versions": [
      {
        "status": "affected",
        "version": "0.7.5",
        "versionType": "semver",
        "lessThanOrEqual": "0.7.6"
      }
    ]
  }
]

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