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CVE-2026-90678

🗓️ 13 Sep 2026 03:37:55Reported by mitreType 
cve
 cve
🔗 web.nvd.nist.gov👁 66 Views

HTTP request smuggling in HAProxy 3.3.0-3.4.4 via HTTP/3 to HTTP/1.1 chunked desync.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-90678
13 Sep 202605:00
–circl
cvelist
Cvelist
CVE-2026-90678
13 Sep 202603:37
–cvelist
debiancve
Debian CVE
CVE-2026-90678
13 Sep 202603:37
–debiancve
euvd
EUVD
EUVD-2026-76943
13 Sep 202603:37
–euvd
nvd
NVD
CVE-2026-90678
13 Sep 202604:17
–nvd
osv
OSV
RHSA-2026:60634 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
22 Sep 202610:16
–osv
osv
OSV
UBUNTU-CVE-2026-90678
13 Sep 202604:17
–osv
ptsecurity
Positive Technologies
PT-2026-90786
13 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-90678: Improper Handling of Length Parameter Inconsistency
13 Sep 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-90678
14 Sep 202610:29
–redhatcve
Rows per page
Vulners
Node
OR
haproxyhaproxyRange3.3.0–3.3.14
haproxyhaproxyRange3.4.0–3.4.4
haproxyhaproxyRange3.5-dev1–3.5-dev5
[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "HTTP/3 multiplexer",
      "HTTP/1 multiplexer"
    ],
    "product": "HAProxy",
    "programFiles": [
      "src/h3.c",
      "src/mux_h1.c"
    ],
    "programRoutines": [
      {
        "name": "h3_rcv_buf"
      }
    ],
    "vendor": "HAProxy",
    "versions": [
      {
        "lessThanOrEqual": "3.3.14",
        "status": "affected",
        "version": "3.3.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "3.4.4",
        "status": "affected",
        "version": "3.4.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "3.5-dev5",
        "status": "affected",
        "version": "3.5-dev1",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "3.5-dev6",
        "versionType": "custom"
      }
    ]
  }
]

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22 Sep 2026 19:56Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.0077
SSVC
66