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OpenAdvisories
Medium · 5.3 CVE-2026-44457 EUVD-2026-30036GHSA-p77w-8qqv-26rm

Hono: Cache Middleware ignores Vary: Authorization / Vary: Cookie leading to cross-user cache leakage

Published May 13, 2026 · Updated May 18, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
honojs hono < 4.12.18 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling langfuse-3-worker 3.176.0-r0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm hono < 4.12.18 4.12.18 GHSA-p77w-8qqv-26rm

References