CVE-2026-50052
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 r...
Published: 2026-06-03 · Last updated: 2026-06-04
Severity and scoring
- CWE
- CWE-444
Description
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 (request smuggling), which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and manipulation. The attack vector only exists if HTTP/2 support is enabled by setting the feature parameter to contain +http2. HTTP/2 support is disabled by default.
Source: NVD
References
Related CVEs
Same CWE
- CVE-2026-41853 — Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks (5.3 MEDIUM)
- CVE-2026-44546 — daphne before 4.2.2 reconstructs a raw HTTP request from Twisted's parsed headers and feeds it to autobahn for WebSocket handshake proces... (3.7 LOW)
- CVE-2026-49753 — Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in elixir-mint Mint allows attacker-contro...
- CVE-2026-45372 — cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library (9.9 CRITICAL)
- CVE-2026-6324 — A flaw was found in libsoup (4.8 MEDIUM)