CVE-2026-40460

mediumpriority · track · 0EPSS 0.004 · 31 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.37% (31st) EPSS

CVSS 6.5 · medium

Is it mine?

43 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

cvss

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

6.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.9

v3.16.5mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Lsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Lsecondary · f5sirt@f5.comexploitability 3.9 · impact 2.5

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/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

v4.02.7lowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/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: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-290USCWE-290US

affected products (43)

Products and version ranges known to be affected.

IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Splunk SOAR< 8.6.0cert_bundDE
F5 NGINX Open Source1.26.0 → 1.30.1enisa_euvdEU
F5 NGINX PlusR32 → R32 P6enisa_euvdEU
F5 NGINX PlusR36 → R36 P4enisa_euvdEU
NGINX Inc. F5 DoS for NGINX≤ 4.8.0fstec_bduRU
NGINX Inc. F5 WAF for NGINX5.9.0 → 5.12.1fstec_bduRU
NGINX Inc. NGINX App Protect DoS4.3.0 → 4.7.0fstec_bduRU
NGINX Inc. NGINX App Protect WAF4.9.0 → 4.16.0fstec_bduRU
NGINX Inc. NGINX App Protect WAF5.1.0 → 5.8.0fstec_bduRU
NGINX Inc. NGINX Gateway Fabric1.3.0 → 1.6.2fstec_bduRU
NGINX Inc. NGINX Gateway Fabric2.0.0 → 2.6.0fstec_bduRU
NGINX Inc. NGINX Ingress Controller3.5.0 → 3.7.2fstec_bduRU
NGINX Inc. NGINX Ingress Controller4.0.0 → 4.0.1fstec_bduRU
NGINX Inc. NGINX Ingress Controller5.0.0 → 5.4.2fstec_bduRU
NGINX Inc. NGINX Instance Manager2.16.0 → 2.21.1fstec_bduRU
NGINX Inc. NGINX Open Source1.25.0 → 1.30.1fstec_bduRU
NGINX Inc. NGINX Open Source1.25.0 → 1.31.0fstec_bduRU
NGINX Inc. NGINX Plus≤ 37.0.0fstec_bduRU

showing 20 of 43

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1527NGINX Open Source and NGINX Plus: Mehrere SchwachstellenDeutsch2026-05-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in NGINX Open Source and NGINX Plus ausnutzen, um Sicherheitsvorkehrungen zu umgehen, beliebigen Code auszuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
WID-SEC-W-2026-2933Splunk SOAR: Mehrere SchwachstellenDeutsch2026-08-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk SOAR ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen SQL-Injection Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, und um beliebigen Programmcode auszuführen.
BIT-nginx-2026-40460NGINX ngx_quic_module vulnerability2026-05-15vendor · osvUS
When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
BIT-nginx-gateway-2026-40460NGINX ngx_quic_module vulnerability2026-05-15vendor · osvUS
When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund NVD CVE.org MITRE

published 2026-05-13modified 2026-10-26

references (5)

External citations — patches, advisories, analysis.

scry

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