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CVE-2026-50107 is a high-severity injection vulnerability in NGINX Gateway Fabric when NGINX Plus or NGINX Open Source is used as the data plane. The flaw is in the NGINX configuration generator component, which renders user-controlled string values from the NginxProxy Custom Resource Definition access log format setting directly into generated NGINX configuration templates without sanitization or escaping. An authenticated user who can create or modify the relevant CRD can supply crafted values that inject arbitrary NGINX configuration directives into the generated configuration. The issue is triggered through the control plane configuration workflow rather than direct data plane request handling.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An F5-addressed vulnerability affecting multiple F5/NGINX products; specific technical details are not provided in the content.
A high-severity configuration injection vulnerability in NGINX Gateway Fabric caused by insufficient validation of access-log format fields in NginxProxy CRDs, allowing authenticated users with CRD modification rights to inject arbitrary NGINX directives.
A high-severity authenticated configuration-injection vulnerability in NGINX Gateway Fabric related to insufficient access-log format validation in NginxProxy CRDs.
A high-severity vulnerability in NGINX Gateway Fabric that could allow authenticated attackers to inject arbitrary NGINX configuration directives.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.