CVE-2026-50052 | | | 2026-06-03 | In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync
attack (… |
CVE-2026-40396 | Medium | 4.0 | 2026-04-12 | Varnish Cache 9 before 9.0.1 allows a "workspace overflow" denial of service (daemon panic) after timeout_linger. A malicious client could send an HTTP/1 reque… |
CVE-2026-40395 | Medium | 4.0 | 2026-04-12 | Varnish Enterprise before 6.0.16r12 allows a "workspace overflow" denial of service (daemon panic) for shared VCL. The headerplus.write_req0() function from vm… |
CVE-2026-40394 | Medium | 4.0 | 2026-04-12 | Varnish Cache 9 before 9.0.1 and Varnish Enterprise before 6.0.16r11 allows a "workspace overflow" denial of service (daemon panic) for certain amounts of pref… |
CVE-2026-34475 | Medium | 5.4 | 2026-03-27 | 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, poten… |
CVE-2025-8671 | High | 7.5 | 2025-08-13 | A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may… |
CVE-2025-47905 | Medium | 5.4 | 2025-05-13 | Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product inc… |
CVE-2025-30347 | Medium | 4.0 | 2025-03-21 | Varnish Enterprise before 6.0.13r13 allows remote attackers to obtain sensitive information via an out-of-bounds read for range requests on ephemeral MSE4 stev… |
CVE-2025-30346 | Medium | 5.4 | 2025-03-21 | Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests. |
CVE-2023-41104 | Medium | 6.5 | 2023-08-23 | libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding, leading to both au… |
CVE-2022-45060 | High | 7.5 | 2022-11-09 | An HTTP Request Forgery issue was discovered in Varnish Cache 5.x and 6.x before 6.0.11, 7.x before 7.1.2, and 7.2.x before 7.2.1. An attacker may introduce ch… |
CVE-2022-23959 | Critical | 9.1 | 2022-01-26 | In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0… |
CVE-2021-36740 | Medium | 6.5 | 2021-07-14 | 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 Va… |
CVE-2020-11653 | High | 7.5 | 2020-04-08 | An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termin… |
CVE-2019-20637 | High | 7.5 | 2020-04-08 | An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handli… |
CVE-2019-15892 | High | 7.5 | 2019-09-03 | An issue was discovered in Varnish Cache before 6.0.4 LTS, and 6.1.x and 6.2.x before 6.2.1. An HTTP/1 parsing failure allows a remote attacker to trigger an a… |
CVE-2017-12425 | High | 7.5 | 2017-08-04 | An issue was discovered in Varnish HTTP Cache 4.0.1 through 4.0.4, 4.1.0 through 4.1.7, 5.0.0, and 5.1.0 through 5.1.2. A wrong if statement in the varnishd so… |