CVE-2026-97205

highpriority · track · 42EPSS 0.008 · 57 %ileexploit · PoCDEFRUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

0.83% (57th) EPSS

CVSS 8.1 · high

Is it mine?

23 products

Check your exposure

Who says so?

3 sources

osv · cert_bund · certfr

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

9.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.2

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · f5sirt@f5.comexploitability 2.2 · impact 5.9

v4.09.2criticalCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · f5sirt@f5.com

v4.08.2highCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416US

exploits (2)

Public proof-of-concept and weaponised exploit code.

piecar21/CVE-2026-97205PoC / exploit archive for CVE-2026-97205PoC · poc_in_github
suominen/CVE-2026-97205suominen/CVE-2026-97205PoC · poc_in_github

affected products (23)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
NGINX NGINX App Protect WAFall versionscert_bundDEcpe:/a:nginx:nginx:app_protect_waf
NGINX NGINX NGINX App Protect DoSall versionscert_bundDEcpe:/a:nginx:nginx:nginx_app_protect_dos
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
NGINX NGINX Plus< 37.0.5.1cert_bundDE
NGINX NGINX Plus< 37.0.7.1cert_bundDE
NGINX NGINX Plus< 37.1.0.1cert_bundDE
NGINX NGINX Plus< 37.2.0.1cert_bundDE
Nginx Nginx≤ Open Source <1.31.7cert_bundDE
Nginx Nginx≤ F5 DoS <4.11.0cert_bundDE
Nginx Nginx≤ F5 WAF <5.14.2cert_bundDE
Nginx Nginx≤ F5 WAF <5.16.0cert_bundDE
Nginx Nginx≤ Gateway Fabric <2.8.0cert_bundDE
Nginx Nginx≤ Ingress Controller <5.7.0cert_bundDE
Nginx Nginx≤ Instance Manager <2.24.0cert_bundDE
Nginx Nginx≤ JavaScript (njs) <1.0.2cert_bundDE
Nginx Nginx≤ Open Source <1.30.6cert_bundDE
Bitnami nginx1.30.0 → 1.30.6osvUSpkg:bitnami/nginx

showing 20 of 23

advisories (5)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3948NGINX: Mehrere SchwachstellenDeutsch2026-10-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in NGINX NGINX Plus und NGINX ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren und offenzulegen oder einen Denial-of-Service-Zustand auszulösen.
BIT-nginx-2026-97205NGINX ngx_http_core_module vulnerability2026-10-21vendor · osvUS
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.
BIT-nginx-gateway-2026-97205NGINX ngx_http_core_module vulnerability2026-10-21vendor · osvUS
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.
CERTFR-2026-AVI-1317Multiples vulnérabilités dans les produits F5Français2026-10-15vendor · certfrFR
CERTFR-2026-AVI-1341Multiples vulnérabilités dans les produits F5Français2026-10-19vendor · certfrFR

also known as (2)

Other names and identifiers for this entity.

BIT-nginx-2026-97205osv
BIT-nginx-gateway-2026-97205osv

sources

Which sources assert this record, and when.

osv cert_bund certfr NVD CVE.org MITRE

published 2026-10-14modified 2026-10-15

references (1) nvd

External citations — patches, advisories, analysis.

https://my.f5.com/manage/s/article/K000162608

scry

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