PT-2026-38319 · Hono · Hono

Published 2026-05-06 · Updated 2026-05-18 · CVE-2026-44456

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Hono versions prior to 4.12.16

Description The bodyLimit() function does not reliably enforce the maxSize parameter for requests that lack a usable Content-Length, such as those using Transfer-Encoding: chunked. For these requests, the function wraps the body in a stream that counts bytes asynchronously and executes the handler before the size decision is finalized. This allows oversized requests to bypass the limit and return a 200 status code instead of a 413 status code if the handler does not read the body, reads only initial chunks, or suppresses read errors using try/catch blocks.

Recommendations Update to version 4.12.16.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CLEANSTART-2026-BE61221

CVE-2026-44456

GHSA-9VQF-7F2P-GF9V

Affected Products

Hono

References · 170

• https://github.com/honojs/hono/security/advisories/GHSA-9vqf-7f2p-gf9v · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-30827 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42036 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-4926 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-39409 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-6322 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-33937 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-4923 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42044 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42038 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-34043 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42034 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42037 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-29087 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-41239 · Security Note