Is CVE-2026-50107 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-50107 being exploited in the wild.

How severe is CVE-2026-50107?

High severity, with a CVSS score of 8.1, published 17 June 2026.

Which products and versions are affected?

F5 Nginx Gateway Fabric 2.3.0 to 2.6.3.

Is there a fix for CVE-2026-50107?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-50107 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-50107?

Check whether you run F5 Nginx Gateway Fabric at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-50107: F5 NGINX Gateway Fabric configuration injection in NginxProxy CRD

CVE-2026-50107 · Severity: high · CVSS 8.1 · Published 2026-06-17

NGINX Gateway Fabric is a tool used to manage network traffic for applications running in Kubernetes environments. A security flaw in its configuration generator allows authorized users to inject malicious commands into the system's internal settings. If exploited, an attacker could gain unauthorized control over how the gateway handles traffic, potentially leading to data exposure or service disruption.

Technologies: F5 Nginx Gateway Fabric. Vendors: F5.

Quick answers

Is CVE-2026-50107 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-50107 being exploited in the wild.
How severe is CVE-2026-50107?: High severity, with a CVSS score of 8.1, published 17 June 2026.
Which products and versions are affected?: F5 Nginx Gateway Fabric 2.3.0 to 2.6.3.
Is there a fix for CVE-2026-50107?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-50107 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-50107?: Check whether you run F5 Nginx Gateway Fabric at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric when using NGINX Plus or NGINX Open Source as the data plane. The root cause is the failure to sanitize or escape user-supplied string values from the NginxProxy Custom Resource Definition (CRD) access log format setting before rendering them into NGINX configuration templates. An authenticated attacker with network access and permissions to create or modify these CRDs can inject arbitrary NGINX configuration directives. While this is a control plane issue without direct data plane exposure from the trigger itself, it allows for significant unauthorized configuration changes. The vulnerability affects versions 2.3.0 through 2.6.3 and is addressed in version 2.6.4.

Affected products

F5 NGINX Gateway Fabric 2.3.0 to 2.6.3

Timeline

2026-06-17: disclosed
2026-06-17: advisory

References

https://my.f5.com/manage/s/article/K000161785

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