What is CVE-2026-93750?

CVE-2026-93750 is a medium-severity vulnerability, classified under CWE-436. CVSS score: 5.9/10. Published 2026-09-18.

How severe is CVE-2026-93750?

Medium severity. CVSS v3 base score is 5.9 out of 10.

CVE-2026-93750

CVE-2026-93750

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.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Weakness classification (CWE)

CWE-436

References

disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-93750?: CVE-2026-93750 is a medium-severity vulnerability, classified under CWE-436. CVSS score: 5.9/10. Published 2026-09-18.
How severe is CVE-2026-93750?: Medium severity. CVSS v3 base score is 5.9 out of 10.