What is CVE-2026-44457?

CVE-2026-44457 is a medium-severity vulnerability in Hono, classified under Use of Cache Containing Sensitive Information. CVSS score: 5.3/10. Published 2026-05-13.

How severe is CVE-2026-44457?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Hono

CVE-2026-44457

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, Cache Middleware does not skip caching for responses that declare per-user variance via Vary: Authorization or Vary: Cookie. As a resul…

EPSS: 0.000 (11.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Hono
Honojs Hono — versions < 4.12.18

Weakness classification (CWE)

CWE-524 — Use of Cache Containing Sensitive Information

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44457?: CVE-2026-44457 is a medium-severity vulnerability in Hono, classified under Use of Cache Containing Sensitive Information. CVSS score: 5.3/10. Published 2026-05-13.
How severe is CVE-2026-44457?: Medium severity. CVSS v3 base score is 5.3 out of 10.