FKIE_CVE-2026-42945
Vulnerability from fkie_nvd - Published: 2026-05-13 16:16 - Updated: 2026-10-26 14:10
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 (High) - CVSS:3.1/
Summary
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| f5 | dos | * | |
| f5 | dos | 4.8.0 | |
| f5 | nginx_gateway_fabric | * | |
| f5 | nginx_gateway_fabric | * | |
| f5 | nginx_ingress_controller | * | |
| f5 | nginx_ingress_controller | * | |
| f5 | nginx_ingress_controller | * | |
| f5 | nginx_instance_manager | * | |
| f5 | nginx_open_source | * | |
| f5 | nginx_plus | * | |
| f5 | waf | * | |
| f5 | waf | * | |
| f5 | waf | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"modules": [
"ngx_http_rewrite_module"
],
"product": "NGINX Plus",
"vendor": "F5",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "R37",
"versionType": "custom"
},
{
"lessThan": "R36 P4",
"status": "affected",
"version": "R36",
"versionType": "custom"
},
{
"lessThan": "R32 P6",
"status": "affected",
"version": "R32",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"modules": [
"ngx_http_rewrite_module"
],
"product": "NGINX Open Source",
"vendor": "F5",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1.31.0",
"versionType": "semver"
},
{
"lessThan": "1.30.1",
"status": "affected",
"version": "0.6.27",
"versionType": "semver"
}
]
}
],
"source": "f5sirt@f5.com"
},
{
"affectedData": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1",
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"packageName": "nginx",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2:1.26.3-2.el10_1.2",
"versionType": "rpm"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "2:1.26.3-6.el10_2.3",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "nginx",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2:1.26.3-1.el10_0.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "nginx:1.24",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "8100020260514165201.489197e6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "nginx",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2:1.20.1-24.el9_7.3",
"versionType": "rpm"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "2:1.20.1-28.el9_8.2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "nginx:1.24",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "9080020260514160836.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "nginx:1.26",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "9080020260514152324.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0"
],
"defaultStatus": "affected",
"packageName": "nginx",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1:1.20.1-10.el9_0.4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"defaultStatus": "affected",
"packageName": "nginx",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1:1.20.1-14.el9_2.6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4"
],
"defaultStatus": "affected",
"packageName": "nginx",
"product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1:1.20.1-16.el9_4.6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4"
],
"defaultStatus": "affected",
"packageName": "nginx:1.24",
"product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "9040020260514192210.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "nginx:1.24",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "9060020260514175739.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "nginx:1.26",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "9060020260514170123.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "nginx",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2:1.20.1-22.el9_6.6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "nginx-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1.30.1-1.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.14::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.14",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779972138",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.14::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.14",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779972283",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.14::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.14",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779972179",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.15::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.15",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779967811",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.15::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.15",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779967813",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.15::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.15",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779968303",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.16::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.16",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779959318",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.16::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.16",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779959527",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.16::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.16",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779959592",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.17::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779952245",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.17::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779952279",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.17::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779952463",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.18::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779881302",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.18::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779881608",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.18::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779881122",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.19::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.19",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779881012",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.19::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.19",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779881008",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.19::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.19",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779881332",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.20::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.20",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779879463",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.20::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.20",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779877770",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.20::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.20",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779881377",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.21::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/ocs-client-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.21",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779946521",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.21::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.21",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779946525",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:openshift_data_foundation:4.21::el9"
],
"defaultStatus": "affected",
"packageName": "odf4/odf-multicluster-console-rhel9",
"product": "Red Hat Openshift Data Foundation 4.21",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779946691",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9"
],
"defaultStatus": "affected",
"packageName": "satellite/iop-gateway-rhel9",
"product": "Red Hat Satellite 6.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779706745",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:satellite:6.19::el9"
],
"defaultStatus": "affected",
"packageName": "satellite/iop-gateway-rhel9",
"product": "Red Hat Satellite 6.19",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779706797",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/cds-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779798159",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/rhua-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779798222",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/cds-kubernetes-tp-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787241211",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/rhua-tp-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787241260",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:red_hat_3scale_amp:2"
],
"defaultStatus": "unaffected",
"packageName": "3scale-amp2/apicast-gateway-rhel8",
"product": "Red Hat 3scale API Management Platform 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:insights_proxy:1"
],
"defaultStatus": "affected",
"packageName": "insights-proxy/insights-proxy-container-rhel9",
"product": "Red Hat Lightspeed proxy 1",
"vendor": "Red Hat"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:f5:dos:*:*:*:*:*:nginx:*:*",
"matchCriteriaId": "0772572C-26F9-4FA4-B9E6-BA40ED59F569",
"versionEndIncluding": "4.7.0",
"versionStartIncluding": "4.3.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:dos:4.8.0:*:*:*:*:nginx:*:*",
"matchCriteriaId": "C45452BD-7A86-48E7-8E1D-1B340FF70B3B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*",
"matchCriteriaId": "15B7F1FD-0C49-460F-9CB8-23DA730EC4BE",
"versionEndIncluding": "1.6.2",
"versionStartIncluding": "1.3.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CE4363AD-0E25-4A27-A45B-A436605626F0",
"versionEndIncluding": "2.5.1",
"versionStartIncluding": "2.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*",
"matchCriteriaId": "10D5B143-4C1E-4626-8B49-3EA7160E9256",
"versionEndIncluding": "3.7.2",
"versionStartIncluding": "3.5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*",
"matchCriteriaId": "73A1CDBB-49F6-4AB6-AA67-542FD8017D6A",
"versionEndIncluding": "4.0.1",
"versionStartIncluding": "4.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*",
"matchCriteriaId": "653E97B6-7BC8-4427-B875-F19E9CE6A04B",
"versionEndIncluding": "5.4.1",
"versionStartIncluding": "5.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_instance_manager:*:*:*:*:*:*:*:*",
"matchCriteriaId": "32EC06F0-3263-43FF-B855-EF903E6FFE7C",
"versionEndIncluding": "2.21.1",
"versionStartIncluding": "2.16.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*",
"matchCriteriaId": "35DC1B89-E400-429C-9360-303F69D2BF3A",
"versionEndIncluding": "1.30.0",
"versionStartIncluding": "0.6.27",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0B153576-468F-48C2-9BC8-922A938AB235",
"versionEndIncluding": "r36",
"versionStartIncluding": "r32",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*",
"matchCriteriaId": "F365BA5A-42D7-4024-9143-06D4DEE31212",
"versionEndIncluding": "4.16.0",
"versionStartIncluding": "4.9.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*",
"matchCriteriaId": "8D720985-9119-480E-929A-7D9D5C083628",
"versionEndIncluding": "5.8.0",
"versionStartIncluding": "5.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*",
"matchCriteriaId": "DE69C522-7FCB-4452-8E33-FCC72D36BF94",
"versionEndIncluding": "5.12.1",
"versionStartIncluding": "5.9.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module\u00a0module. This vulnerability exists when the rewrite\u00a0directive is followed by a rewrite, if, or set\u00a0directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR.\u00a0 Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
},
{
"lang": "es",
"value": "NGINX Plus y NGINX Open Source tienen una vulnerabilidad en el m\u00f3dulo ngx_http_rewrite_module. Esta vulnerabilidad existe cuando la directiva rewrite es seguida por una directiva rewrite, if o set y una captura de Expresi\u00f3n Regular Compatible con Perl (PCRE) sin nombre (por ejemplo, $1, $2) con una cadena de reemplazo que incluye un signo de interrogaci\u00f3n (?). Un atacante no autenticado, junto con condiciones fuera de su control, puede explotar esta vulnerabilidad enviando solicitudes HTTP manipuladas. Esto puede causar un desbordamiento de b\u00fafer de pila en el proceso de trabajo de NGINX, lo que lleva a un reinicio. Adem\u00e1s, para sistemas con la Aleatorizaci\u00f3n del Espacio de Direcciones (ASLR) deshabilitada, es posible la ejecuci\u00f3n de c\u00f3digo. Nota: Las versiones de software que han alcanzado el Fin del Soporte T\u00e9cnico (EoTS) no son evaluadas."
}
],
"id": "CVE-2026-42945",
"lastModified": "2026-10-26T14:10:00.130",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 5.9,
"source": "f5sirt@f5.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 5.9,
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "f5sirt@f5.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-42945",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-05-13T16:16:50.190",
"references": [
{
"source": "f5sirt@f5.com",
"tags": [
"Mitigation",
"Vendor Advisory"
],
"url": "https://my.f5.com/manage/s/article/K000161019"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mitigation",
"Technical Description",
"Third Party Advisory"
],
"url": "https://depthfirst.com/nginx-rift"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/DepthFirstDisclosures/Nginx-Rift"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17417"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17751"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17752"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17753"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17790"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17791"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17792"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17793"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:17794"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:18029"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:18041"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:18063"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:19159"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:19371"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:19372"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:19374"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:20442"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:20444"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:21275"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22382"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22383"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22388"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22389"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22390"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22393"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22394"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:22396"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/errata/RHSA-2026:58981"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://access.redhat.com/security/cve/CVE-2026-42945"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477116"
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42945.json"
}
],
"sourceIdentifier": "f5sirt@f5.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-122"
}
],
"source": "f5sirt@f5.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-131"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"type": "Secondary"
}
]
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.