# CVE-2026-95101: NGINX ngx_http_v3_module vulnerability

CVE-2026-95101 is fixed in 29 products on 1 platform, first by DEBIAN-CVE-2026-95101, released October 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-95101
- Priority: Routine
- CVSS: 5.3 (Moderate)
- EPSS: 0.0035
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 14, 2026
- Weakness: Encoding Error
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-95101

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libnginx-mod-http-geoip Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [libnginx-mod-http-geoip 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnginx-mod-http-geoip-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | libnginx-mod-http-image-filter Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [libnginx-mod-http-image-filter 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnginx-mod-http-image-filter-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | libnginx-mod-http-perl Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [libnginx-mod-http-perl 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnginx-mod-http-perl-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | libnginx-mod-http-xslt-filter Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [libnginx-mod-http-xslt-filter 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnginx-mod-http-xslt-filter-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | libnginx-mod-mail Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [libnginx-mod-mail 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnginx-mod-mail-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | libnginx-mod-stream Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [libnginx-mod-stream 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnginx-mod-stream-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | libnginx-mod-stream-geoip Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [libnginx-mod-stream-geoip 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnginx-mod-stream-geoip-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | nginx Debian 13.5 (trixie) | 1.26.3-3+deb13u10 | [DEBIAN-CVE-2026-95101](https://patchblox.com/security/data/fix/linux/debian-cve-2026-95101.md) | Oct 18, 2026 |
| Linux | nginx Debian 14 | 1.30.4-8 | [DEBIAN-CVE-2026-95101](https://patchblox.com/security/data/fix/linux/debian-cve-2026-95101.md) | Oct 18, 2026 |
| Linux | nginx Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [nginx 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-nginx-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | nginx amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-all-modules amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-common Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [nginx-common 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-nginx-common-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | nginx-core Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [nginx-core 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-nginx-core-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | nginx-core amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-core-debuginfo amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-debuginfo amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-debugsource amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-extras Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [nginx-extras 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-nginx-extras-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | nginx-filesystem amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-full Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [nginx-full 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-nginx-full-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | nginx-light Ubuntu 26.04.1 LTS (resolute) | 1.28.3-2ubuntu1.12 | [nginx-light 1.28.3-2ubuntu1.12](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-nginx-light-1.28.3-2ubuntu1.12.md) | Nov 7, 2026 |
| Linux | nginx-mod-devel amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-http-image-filter amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-http-image-filter-debuginfo amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-http-perl amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-http-perl-debuginfo amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-http-xslt-filter amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-http-xslt-filter-debuginfo amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-mail amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-mail-debuginfo amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-stream amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |
| Linux | nginx-mod-stream-debuginfo amzn 2023 | 1:1.30.6-1.amzn2023.0.1 | [ALAS2023-2026-3263](https://patchblox.com/security/data/fix/linux/alas2023-2026-3263.md) | Nov 7, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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