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0 Varnish Cache versions prior to 9.0.1 and Varnish Enterprise before 6.0.16r11 contain a vulnerability that can cause a denial of service via a workspace overflow leading to a daemon panic. This occurs during the HTTP/2 session upgrade process when buffer allocation splits the original workspace, and certain amounts of prefetched data cause pipelining operations to exhaust the workspace. The vulnerability is identified as CWE-670, relating to always-incorrect control flow implementation. Join the discussion | CVE Database V5 | 04/12/2026, 19:17:34 UTC Added: 04/12/2026, 19:31:50 UTC |
0 Varnish Cache before 8.0.1 and Varnish Enterprise before 6.0.16r12, in certain unchecked req.url scenarios, mishandle URLs with a path of / for HTTP/1.1, potentially leading to cache poisoning or authentication bypass. Join the discussion | CVE Database V5 | 03/27/2026, 19:40:28 UTC Added: 03/27/2026, 19:59:53 UTC |
0 Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack. Join the discussion | CVE Database V5 | 03/24/2024, 00:00:00 UTC Added: 02/25/2026, 21:46:36 UTC |
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