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CVE-2026-44457

Medium

Description

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 result, a response cached for one authenticated user may be served to subsequent requests from different users. This vulnerability is fixed in 4.12.18.

SeverityMedium
CVSS5.3
Exploit probability—
ProductHono
PublishedMay 13, 2026
First seenMay 13, 2026
Weakness typeCWE-524CWE-524

How to fix

Update
  • hono hono4.12.18 or later
  • hono4.12.18 or later

Affected products

ProductAffected versionsFixed in
hono honov < 4.12.184.12.18
hononpmv < 4.12.184.12.18

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