CVE-2026-42946
NGINX ngx_http_scgi_module and ngx_http_uwsgi_module vulnerability
HIGH 8.3
En bref
- Source
- NVD
- EPSS
- EPSS 0.93 % · centile 61 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- f5
- Statut NVD
- Analyzed
Description
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Faiblesses (CWE)
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L | f5 |
| CVSS 4.0 | HIGH 8.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N | f5 |
| CVSS 4.0 | HIGH 8.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/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:X | NVD · f5sirt@f5.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L | NVD · f5sirt@f5.com (Secondary) |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2026-30011
- GCVE · GCVE-0-2026-42946
Avis du CERT-FR
- CERTFR-2026-AVI-1056 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0612 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0591 — Multiples vulnérabilités dans les produits F5 · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:f5:dos:*:*:*:*:*:nginx:*:*≥ 4.3.0 ≤ 4.7.0cpe:2.3:a:f5:dos:4.8.0:*:*:*:*:nginx:*:*cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*≥ 1.3.0 ≤ 1.6.2cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*≥ 2.0.0 ≤ 2.6.0cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*≥ 3.5.0 ≤ 3.7.2cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*≥ 4.0.0 ≤ 4.0.1cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:*≥ 5.0.0 ≤ 5.4.2cpe:2.3:a:f5:nginx_instance_manager:*:*:*:*:*:*:*:*≥ 2.16.0 ≤ 2.22.0cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*≥ 0.8.42 ≤ 0.9.7cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*≥ 1.0.0 ≤ 1.30.0cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*≥ r32 ≤ r36cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*≥ 4.9.0 ≤ 4.16.0cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*≥ 5.1.0 ≤ 5.8.0cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*≥ 5.9.0 ≤ 5.12.1
Produits affectés
| Produit | Versions |
|---|---|
| F5 · NGINX Plus | unaffected R37 < * ; affected R36 < R36 P4 ; affected R32 < R32 P6 |
| F5 · NGINX Open Source | unaffected 1.31.0 < * ; affected 0.8.42 < 1.30.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |