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CVE-2026-69217 Http4s: Ember Server accepts duplicate Content-Length headers

🗓️ 15 Sep 2026 19:20:02Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

CL.CL request smuggling in Http4s Ember via duplicate Content-Length header acceptance.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-69217
15 Sep 202619:20
–cve
euvd
EUVD
EUVD-2026-79193
15 Sep 202619:20
–euvd
nvd
NVD
CVE-2026-69217
15 Sep 202620:17
–nvd
ptsecurity
Positive Technologies
PT-2026-92427
15 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-69217: Inconsistent Interpretation of HTTP Requests
15 Sep 202600:00
–rapid7
snyk
Snyk
HTTP Request Smuggling
15 Sep 202620:26
–snyk
snyk
Snyk
HTTP Request Smuggling
15 Sep 202620:26
–snyk
snyk
Snyk
HTTP Request Smuggling
15 Sep 202620:26
–snyk
vulnrichment
Vulnrichment
CVE-2026-69217 Http4s: Ember Server accepts duplicate Content-Length headers
15 Sep 202619:20
–vulnrichment
[
  {
    "vendor": "http4s",
    "product": "http4s",
    "versions": [
      {
        "version": "< 0.23.35",
        "status": "affected"
      },
      {
        "version": ">= 1.0.0-M1, < 1.0.0-M47",
        "status": "affected"
      }
    ]
  }
]

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15 Sep 2026 19:20Current
CVSS 3.18.7
EPSS0.00499
SSVC
42