Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-varnishalma-upgrade-varnish-develalma-upgrade-varnish-docs | May 4, 2022 | Jul 14, 2021 | |
| Alpine Linux | alpine-linux-upgrade-varnish | Mar 26, 2024 | Jul 14, 2021 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Jul 14, 2021 | |
| Centos_linux | — | centos-upgrade-varnishcentos-upgrade-varnish-develcentos-upgrade-varnish-docscentos-upgrade-varnish-modulescentos-upgrade-varnish-modules-debuginfocentos-upgrade-varnish-modules-debugsource | Aug 3, 2021 | Jul 14, 2021 |
| Debian | debian-upgrade-varnish | Mar 7, 2022 | Jul 14, 2021 | |
| Oracle_linux | — | oracle-linux-upgrade-varnishoracle-linux-upgrade-varnish-develoracle-linux-upgrade-varnish-docsoracle-linux-upgrade-varnish-modules | Aug 4, 2021 | Jul 13, 2021 |
| Redhat_linux | redhat-upgrade-varnishredhat-upgrade-varnish-develredhat-upgrade-varnish-docsredhat-upgrade-varnish-modulesredhat-upgrade-varnish-modules-debuginforedhat-upgrade-varnish-modules-debugsource | Aug 3, 2021 | Jul 14, 2021 | |
| Rocky_linux | rocky-upgrade-varnishrocky-upgrade-varnish-develrocky-upgrade-varnish-docsrocky-upgrade-varnish-modulesrocky-upgrade-varnish-modules-debuginforocky-upgrade-varnish-modules-debugsource | Mar 12, 2024 | Jul 14, 2021 | |
| Suse | — | suse-upgrade-libvarnishapi3suse-upgrade-varnishsuse-upgrade-varnish-devel | Oct 26, 2022 | Jul 14, 2021 |
| Ubuntu | ubuntu-upgrade-libvarnishapi1ubuntu-upgrade-libvarnishapi2ubuntu-upgrade-varnish | Jun 9, 2022 | Jul 14, 2021 |
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