CVE-2026-95101 NGINX ngx_http_v3_module vulnerability
An unauthenticated attacker can inject data into proxied requests when HTTP/3 and proxy_request_buffering are enabled in NGINX.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-95101?
CVE-2026-95101 is a medium-severity vulnerability in F5 NGINX Open Source, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-172
Which versions are affected by CVE-2026-95101?
2 open source packages ship an affected version, including nginx and nginx-gateway.
| Package | Affected | Fixed in |
|---|---|---|
nginx Bitnami | From 1.25.0 | 1.29.0, 1.30.6, 1.31.7 |
nginx-gateway Bitnami | From 1.25.0 | 2.2.1 |
How do I fix CVE-2026-95101?
Upgrade nginx to a fixed version for your release line: 1.29.0, 1.30.6 or 1.31.7.
Is CVE-2026-95101 being exploited?
There is no known exploitation of CVE-2026-95101 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2026-95101, AZL-108449, BELL-CVE-2026-95101, BIT-nginx-2026-95101, BIT-nginx-gateway-2026-95101, DEBIAN-CVE-2026-95101 and 3 more.