CVE-2026-44455

MEDIUM

Hono: Unvalidated JSX Tag Names in hono/jsx May Allow HTML Injection

Title source: cna

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.16, Improper handling of JSX element tag names in hono/jsx allowed unvalidated tag names to be directly inserted into the generated HTML output. When untrusted input is used as a tag name via the programmatic jsx() or createElement() APIs during server-side rendering, specially crafted values may break out of the intended element context and inject unintended HTML. This vulnerability is fixed in 4.12.16.

References (1)

Core 1

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/honojs/hono/security/advisories/GHSA-69xw-7hcm-h432

Scores

CVSS v3 4.7

EPSS 0.0003

EPSS Percentile 9.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-74

Status published

Products (3)

hono/hono < 4.12.16

honojs/hono < 4.12.16

npm/hono 0 - 4.12.16npm

Published May 13, 2026

Tracked Since May 13, 2026