Description
Description
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with
proxy_request_buffering on directive, an unauthenticated attacker may be able to inject data in the proxied request.
Impact
This vulnerability may allow remote attackers to
inject data in the proxied request. 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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| F5 | NGINX Plus | 37.1.0 – < 37.2.0.1, 37.0.0 – < 37.0.7.1, R36, R35, R34, R33 | 37.2.0.1 |
| F5 | NGINX Open Source | 1.31.0 – < 1.31.7, 1.30.0 – < 1.30.6, 1.25.0 | 1.31.7 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nginx | 1.30.4-8 | — |
| Debian 13 | nginx | 1.26.3-3+deb13u10 | — |
| Debian 12 | nginx | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | nginx | 1.30.4-7ubuntu1.1 | USN-8955-1 |
| Ubuntu 26.04 LTS | nginx | 1.28.3-2ubuntu1.12 | USN-8955-1 |
| Ubuntu 24.04 LTS | nginx | 1.24.0-2ubuntu7.19 | USN-8955-1 |
| Ubuntu 22.04 LTS | nginx | 1.18.0-6ubuntu14.22 | USN-8955-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | nginx +11 | 1.30.6-1.hum1 | RHSA-2026:83427 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | nginx | 1.31.7-1.1 | openSUSE-SU-2026:12143-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nginx | 1.30.6-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nginx +9 | 1:1.30.6-1.amzn2023.0.1 | ALAS2023-2026-3263 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | nginx | 1.30.6-1 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | ingress-nginx-controller-1.15 | 1.15.12-r0 | — |
| Wolfi rolling | nginx-mainline | 1.31.7-r0 | — |
| Wolfi rolling | nginx-stable | 1.30.6-r0 | — |
Advisories 5
- WID-SEC-2026-3948 NGINX: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- USN-8955-1 nginx vulnerabilities Ubuntu Security Notices (USN) · Oct 26, 2026
- ALAS2023-2026-3263 Moderate: nginx security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 26, 2026
- RHSA-2026:83427 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- openSUSE-SU-2026:12143-1 nginx-1.31.7-1.1 on GA media SUSE / openSUSE Security Updates · Oct 16, 2026
References
- https://my.f5.com/manage/s/article/K000162613 vendor-advisory