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CVE-2026-501078.6HighCWE-74

NGINX Gateway Fabric vulnerability

F5 · NGINX Gateway Fabric

Not in CISA KEVVendor fix available
0.5%probability of exploitation in the next 30 days
42nd percentile
050100

Higher than 42% of scored CVEs

8.6HighCVSS 3.1
LowHigh

DescriptionNVD

When NGINX Plus or NGINX Open Source is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the NginxProxy Custom Resource Definition (CRD) access log format setting are rendered directly into NGINX configuration templates without sanitization or escaping. An authenticated attacker with permission to create or modify these CRDs may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure from the vulnerability trigger itself. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Coverage1 article · 1 outlet

First in our coverage: SecurityWeek, 18 Jun.

  1. F5 patches NGINX remote code flaws CVE-2026-42530, CVE-2026-42055
    SecurityWeek · first in our coverage · mentions it in passing

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References

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