CVE-2025-30346

Summary

CVE-2025-30346 is a vulnerability affecting Varnish Cache versions prior to 7.6.2 and Varnish Enterprise before 6.0.13r10. This issue permits client-side desynchronization through HTTP/1 requests. A malicious client can send specially crafted packets to manipulate the cache's state and potentially gain unauthorized access or execute arbitrary code. This vulnerability poses a significant risk to web applications that use the affected versions of Varnish Cache. System administrators are advised to update their installations to the latest versions as soon as possible to mitigate this threat.

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