CVE-2025-23419
Fixed in a distro release EPSS 3%CVSS 4.3
When multiple server blocks are configured to share the same IP address and port, an attacker can use session resumption to bypass client certificate authentication requirements on these servers. This vulnerability arises when TLS Session Tickets https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_ticket_key are used and/or the SSL session cache https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_cache are used in the default server and the default server is performing client certificate authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Products: F5 NGINX Open Source, F5 NGINX Plus
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.20 | nginx | 1.26.3-r0 |
| Alpine 3.21 | nginx | 1.26.3-r0 |
| Alpine 3.22 | nginx | 1.26.3-r0 |
| Alpine 3.23 | nginx | 1.26.3-r0 |
| Alpine 3.24 | nginx | 1.26.3-r0 |
| Amazon Linux 2023 | nginx | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-all-modules | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-core | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-filesystem | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-mod-devel | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-mod-http-image-filter | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-mod-http-perl | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-mod-http-xslt-filter | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-mod-mail | 1:1.26.3-1.amzn2023.0.1 |
| Amazon Linux 2023 | nginx-mod-stream | 1:1.26.3-1.amzn2023.0.1 |
| Chainguard | ingress-nginx-controller-1.13 | 1.13.0-r0 |
| Chainguard | ingress-nginx-controller-1.13 | 1.13.8-r0 |
| Chainguard | ingress-nginx-controller-1.14 | 1.14.0-r0 |
| Chainguard | ingress-nginx-controller-1.15 | 1.15.0-r0 |
| Chainguard | ingress-nginx-controller-fips-1.13 | 1.13.0-r0 |
| Chainguard | ingress-nginx-controller-fips-1.14 | 1.14.0-r0 |
| Chainguard | ingress-nginx-controller-fips-1.15 | 1.15.0-r0 |
| Debian 11 | nginx | 1.18.0-6.1+deb11u4 |
| Debian 12 | nginx | 1.22.1-9+deb12u1 |
| Debian 13 | nginx | 1.26.3-2 |
| Debian 14 | nginx | 1.26.3-2 |
| Red Hat Enterprise Linux 9 | nginx | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-all-modules | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-core | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-core-debuginfo | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-debuginfo | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-debugsource | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-filesystem | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-devel | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-http-image-filter | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-http-image-filter-debuginfo | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-http-perl | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-http-perl-debuginfo | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-http-xslt-filter | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-http-xslt-filter-debuginfo | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-mail | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-mail-debuginfo | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-stream | 2:1.20.1-22.el9 |
| Red Hat Enterprise Linux 9 | nginx-mod-stream-debuginfo | 2:1.20.1-22.el9 |
| Ubuntu 20.04 LTS | nginx | 1.18.0-0ubuntu1.7 |
| Ubuntu 22.04 LTS | nginx | 1.18.0-6ubuntu14.6 |
| Ubuntu 24.04 LTS | nginx | 1.24.0-2ubuntu7.3 |
| Ubuntu Pro 14.04 LTS | nginx | no fix |
| Ubuntu Pro 16.04 LTS | nginx | no fix |
| Ubuntu Pro 18.04 LTS | nginx | no fix |
| Wolfi | ingress-nginx-controller-1.14 | 1.14.0-r0 |
| Wolfi | ingress-nginx-controller-1.15 | 1.15.0-r0 |
| openSUSE Tumbleweed | nginx | 1.27.4-1.1 |