CVE-2026-97205 (GCVE-0-2026-97205)

Vulnerability from cvelistv5 – Published: 2026-10-14 14:40 – Updated: 2026-10-15 10:31
VLAI
Title
NGINX ngx_http_core_module vulnerability
Summary
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.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 (Critical)
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
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 03:57 UTC
CWE
Assigner
f5 CNA under the mitre root
CNA scorecard B 84/100 over 87 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
F5 NGINX Plus Affected: 37.1.0 , < 37.1.0.1 (custom)
Affected: 37.0.0 , < 37.0.5.1 (custom)
Affected: R36 , < * (custom)
Affected: R35 , < * (custom)
Affected: R34 , < * (custom)
Affected: R33 , < * (custom)
guessed Create a notification for this product.
F5 NGINX Open Source Affected: 1.31.0 , < 1.31.7 (custom)
Affected: 1.30.0 , < 1.30.6 (custom)
guessed Create a notification for this product.
Date Public
2026-10-14 14:00
Credits
F5 acknowledges Cyberlanc3r for bringing this issue to our attention and following the highest standards of coordinated disclosure.
Show details on NVD website
To clipboard 

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