# CVE-2026-97629: NGINX ngx_http_ssl_module vulnerability CVE-2026-97629 is fixed in 29 products on 1 platform, first by DEBIAN-CVE-2026-97629, released October 18, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-97629 - Priority: Routine - CVSS: 6.5 (Important) - EPSS: 0.0025 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 14, 2026 - Weakness: Use of Uninitialized Resource - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97629 ## Description Description When NGINX Plus or NGINX Open Source is configured with ssl_session_cache shared:name:size without an explicit ssl_session_ticket_key file directives to automatically rotate SSL session ticket keys, a remote unauthenticated attacker is able to forge client SSL sessions in a non-deterministic manner that is beyond the attacker's control. An attacker could leverage this vulnerability to bypass verification of client certificates. Impact This vulnerability can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with access to sensitive information. 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [libnginx-mod-http-geoip 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnginx-mod-http-geoip-1.24.0-2ubuntu7.19.md) | Oct 27, 2026 | | 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [libnginx-mod-http-image-filter 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnginx-mod-http-image-filter-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [libnginx-mod-http-perl 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnginx-mod-http-perl-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [libnginx-mod-http-xslt-filter 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnginx-mod-http-xslt-filter-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [libnginx-mod-mail 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnginx-mod-mail-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [libnginx-mod-stream 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnginx-mod-stream-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [libnginx-mod-stream-geoip 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnginx-mod-stream-geoip-1.24.0-2ubuntu7.19.md) | Oct 27, 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-2026-97629](https://patchblox.com/security/data/fix/linux/debian-cve-2026-97629.md) | Oct 18, 2026 | | Linux | nginx Debian 14 | 1.30.4-8 | [DEBIAN-CVE-2026-97629](https://patchblox.com/security/data/fix/linux/debian-cve-2026-97629.md) | Oct 18, 2026 | | Linux | nginx Ubuntu 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [nginx 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nginx-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [nginx-common 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nginx-common-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [nginx-core 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nginx-core-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [nginx-extras 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nginx-extras-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [nginx-full 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nginx-full-1.24.0-2ubuntu7.19.md) | Oct 27, 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 24.04.5 LTS (noble) | 1.24.0-2ubuntu7.19 | [nginx-light 1.24.0-2ubuntu7.19](https://patchblox.com/security/data/fix/linux/ubuntu-noble-nginx-light-1.24.0-2ubuntu7.19.md) | Oct 27, 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 | --- Data as of 2026-11-08T00:53:09Z UTC. 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