CVE-2026-97205: critical vulnerability in F5 NGINX Plus
NGINX ngx_http_core_module vulnerability
Published · Updated
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.2epss 0.5%
from disclosure to weapon1 days
Published on NVDOct 14
1st PoC+1d
exploitation probability
0.5%top 60% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
public PoCs found — 1
githubgithub.com/suominen/CVE-2026-97205★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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