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CVE-2026-42926

🗓️ 13 May 2026 14:12:45Reported by f5Type 
cve
 cve
🔗 web.nvd.nist.gov👁 129 Views🌐 WEB

CVE-2026-42926: NGINX proxy_http_version 2 with proxy_set_body may inject frame headers and payloads to upstream.

Related
Detection
Affected
Refs
Paths
NVD
Node
OR
f5nginx_gateway_fabricRange1.3.01.6.2
f5nginx_open_sourceRange1.29.41.30.0
Node
OR
f5nginx_gateway_fabricRange2.0.02.6.0
f5nginx_instance_managerRange2.16.02.22.0
Node
OR
f5nginx_ingress_controllerRange3.5.03.7.2
f5nginx_ingress_controllerRange4.0.04.0.1
f5nginx_ingress_controllerRange5.0.05.4.2
[
  {
    "vendor": "F5",
    "product": "NGINX Open Source",
    "modules": [
      "ngx_http_proxy_v2_module"
    ],
    "versions": [
      {
        "status": "unaffected",
        "version": "1.31.0",
        "lessThan": "*",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "1.29.4",
        "lessThan": "1.30.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
ParameterPositionPathDescriptionCWE
request_bodyrequest body/exploitNGINX HTTP/2 frame injection via proxy_pass with proxy_http_version 2 and proxy_set_body on the vulnerable /exploit location.CWE-172

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18 Jun 2026 13:37Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.8
CVSS 46.3
EPSS0.00346
SSVC
129