CVE WatchOct 15, 2026

CVE-2026-97205

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in cer

CVSS

8.1

High

EPSS

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KEV

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Exploit Today

0-100

Published: Oct 14, 2026 · Last modified: Oct 15, 2026 · CWE-416

EPSS · 30d

Not enough EPSS history yet.

Technical description

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. 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/K000162608

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