CVE-2026-93750
Medium · 5.9CVSS
5.9
EPSS
0.4%
Published
Sep 18, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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