CVE WatchSep 2, 2026

CVE-2026-78222

A vulnerability exists in NGINX JavaScript where a malformed HTTP response received by ngx.fetch() can crash an NGINX worker when trusted Ja

CVSS

7.5

High

EPSS

—

KEV

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Exploit Today

0-100

Published: Sep 2, 2026 · Last modified: Sep 2, 2026 · CWE-476

EPSS · 30d

Not enough EPSS history yet.

Technical description

A vulnerability exists in NGINX JavaScript where a malformed HTTP response received by ngx.fetch() can crash an NGINX worker when trusted JavaScript reads Response.statusText. Exploitation requires control or influence over the fetched HTTP response. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Official references

my.f5.comhttps://my.f5.com/manage/s/article/K000162603

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