CVE-2026-97205— NGINX ngx_http_core_module vulnerability
Quick assessment
Affected
F5 NGINX Plus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 Us
Affected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| F5 | NGINX Open Source | 1.31.0< 1.31.7 |
affected |
1.30.0< 1.30.6 |
affected | ||
| F5 | NGINX Plus | 37.1.0< 37.1.0.1 |
affected |
37.0.0< 37.0.5.1 |
affected | ||
R36< * |
affected | ||
R35< * |
affected | ||
R34< * |
affected | ||
R33< * |
affected |
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I. Basic Information for CVE-2026-97205
Vulnerability Information
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Vulnerability Title
NGINX ngx_http_core_module vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| F5 | NGINX Plus | 37.1.0 ~ 37.1.0.1 | - |
|
| F5 | NGINX Open Source | 1.31.0 ~ 1.31.7 | - |
|
II. Public POCs for CVE-2026-97205
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-97205 (1)
-
NGINX ngx_http_core_module vulnerability CVE-2026-97205 vendor-advisory
Same Patch Batch · F5 · 2026-10-14 · 11 CVEs total
| CVE-2026-91184 | 8.8 HIGH | NGINX Gateway Fabric vulnerability |
| CVE-2026-93479 | 8.1 HIGH | NGINX map directive and regex matching vulnerability |
| CVE-2026-15176 | 8.1 HIGH | NGINX ngx_http_core_module vulnerability |
| CVE-2026-94197 | 7.5 HIGH | NGINX Ingress Controller vulnerability |
| CVE-2026-104939 | 7.5 HIGH | NGINX Ingress Controller vulnerability |
| CVE-2026-101019 | 6.5 MEDIUM | NGINX ngx_http_js_module vulnerability |
| CVE-2026-96615 | 6.5 MEDIUM | NGINX Gateway Fabric vulnerability |
| CVE-2026-97629 | 6.5 MEDIUM | NGINX ngx_http_ssl_module vulnerability |
| CVE-2026-95101 | 5.3 MEDIUM | NGINX ngx_http_v3_module vulnerability |
| CVE-2026-101025 | 5.3 MEDIUM | NGINX ngx_http_js_module vulnerability |
IV. Related Vulnerabilities
V. Comments for CVE-2026-97205
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