CVE-2026-93750 – http-cache-semantics through 4.2.0 Cross-Client Cache Disclosure via Vary Wildcard

​CVE ID :CVE-2026-93750

Published : Sept. 18, 2026, 5:51 p.m. | 37 minutes ago

Description :http-cache-semantics through 4.2.0 contains a cache validation vulnerability in the _varyMatches() function that fails to properly validate Vary header wildcards due to byte-for-byte string comparison. Attackers can request URLs previously fetched by other clients to receive cached responses intended for different users, disclosing sensitive information across clients.

Severity: 8.2 | HIGH

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