Skip to content
CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-97205

NGINX ngx_http_core_module vulnerability

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
f5

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

F5 NGINX Plus

Default version status: unknown

  • 37.1.0 to < 37.1.0.1affected
  • 37.0.0 to < 37.0.5.1affected
  • R36 to < *affected
  • R35 to < *affected
  • R34 to < *affected
  • R33 to < *affected

F5 NGINX Open Source

Default version status: unaffected

  • 1.31.0 to < 1.31.7affected
  • 1.30.0 to < 1.30.6affected

References