How severe is CVE-2026-24472?

CVE-2026-24472 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-24472 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24472?

CVE-2026-24472 affects Hono. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24472?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-24472 have an EU (EUVD) identifier?

Yes. CVE-2026-24472 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4750.

When was CVE-2026-24472 published?

CVE-2026-24472 was published on 2026-01-27 and last updated on 2026-06-17.

CVE-2026-24472

CVE-2026-24472 is a medium-severity vulnerability in Hono with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-524.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4750
Weakness: CWE-524
Affected product: Hono
Published: 2026-01-27
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-24472?: 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.
How severe is CVE-2026-24472?: CVE-2026-24472 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-24472 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24472?: CVE-2026-24472 affects Hono. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24472?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24472 have an EU (EUVD) identifier?: Yes. CVE-2026-24472 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4750.
When was CVE-2026-24472 published?: CVE-2026-24472 was published on 2026-01-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hono:hono:*:*:*:*:*:node.js:*:*

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