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CVE-2026-42055

🗓️ 17 Jun 2026 14:04:32Reported by f5Type 
cve
 cve
🔗 web.nvd.nist.gov📰️ 6 Media mentions👁 380 Views

CVE-2026-42055: NGINX heap overflow in proxy http two and grpc modules due to large headers when ignore invalid headers is off.

Related
Detection
Affected
Refs
Social
NVD
Node
OR
f5dosMatch4.9.0nginx
f5nginx_app_protect_dosRange4.3.04.7.0
f5nginx_app_protect_wafRange4.10.04.16.0
f5nginx_app_protect_wafRange5.2.05.8.0
f5nginx_gateway_fabricRange1.3.01.6.2
f5nginx_gateway_fabricRange2.0.02.6.4
f5nginx_ingress_controllerRange3.5.03.7.2
f5nginx_ingress_controllerRange5.0.05.5.1
f5nginx_instance_managerRange2.17.02.22.0
f5nginx_open_sourceRange1.30.01.30.3
f5nginx_plusRange37.0.037.0.1
f5nginx_plusMatchr30-
f5nginx_plusMatchr30p1
f5nginx_plusMatchr30p2
f5nginx_plusMatchr31-
f5nginx_plusMatchr31p1
f5nginx_plusMatchr31p2
f5nginx_plusMatchr31p3
f5nginx_plusMatchr32-
f5nginx_plusMatchr32p1
f5nginx_plusMatchr32p2
f5nginx_plusMatchr32p3
f5nginx_plusMatchr32p4
f5nginx_plusMatchr33-
f5nginx_plusMatchr33p1
f5nginx_plusMatchr33p2
f5nginx_plusMatchr33p3
f5nginx_plusMatchr34-
f5nginx_plusMatchr34p1
f5nginx_plusMatchr34p2
f5nginx_plusMatchr35-
f5nginx_plusMatchr35p1
f5nginx_plusMatchr36-
f5nginx_plusMatchr36p1
f5nginx_plusMatchr36p2
f5nginx_plusMatchr36p3
f5nginx_plusMatchr36p4
f5nginx_plusMatchr36p5
f5wafRange5.9.05.13.1nginx
f5wafMatch4.8.1nginx
[
  {
    "defaultStatus": "unknown",
    "modules": [
      "ngx_http_proxy_v2_module",
      "ngx_http_grpc_module"
    ],
    "product": "NGINX Open Source",
    "vendor": "F5",
    "versions": [
      {
        "lessThan": "1.31.2",
        "status": "affected",
        "version": "1.13.10",
        "versionType": "custom"
      },
      {
        "lessThan": "1.30.3",
        "status": "affected",
        "version": "1.30.2",
        "versionType": "custom"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "modules": [
      "ngx_http_proxy_v2_module",
      "ngx_http_grpc_module"
    ],
    "product": "NGINX Plus",
    "vendor": "F5",
    "versions": [
      {
        "lessThan": "37.0.2.1",
        "status": "affected",
        "version": "37.0",
        "versionType": "custom"
      },
      {
        "lessThan": "R36 P6",
        "status": "affected",
        "version": "R36",
        "versionType": "custom"
      }
    ]
  }
]

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