CVE-2026-56761: hono - HTML Injection via Improper JSX Attribute Name Handling in SSR
hono before 4.12.14 contains an html injection vulnerability in jsx server-side rendering that allows attackers to inject unintended html by using malformed attribute names. Attackers can craft specially crafted attribute keys containing characters like quotes or angle brackets to break html tag boundaries and inject arbitrary attributes or elements.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-56761?
The severity of CVE-2026-56761 is rated as medium with a score of 4.3.
How do I fix CVE-2026-56761?
To fix CVE-2026-56761, upgrade to hono version 4.12.14 or later to mitigate the HTML injection vulnerability.
What kind of vulnerability is CVE-2026-56761?
CVE-2026-56761 is an HTML injection vulnerability that occurs due to improper JSX attribute name handling.
Can CVE-2026-56761 lead to XSS attacks?
Yes, CVE-2026-56761 can potentially lead to cross-site scripting (XSS) attacks due to the ability to inject unintended HTML.
Which software is affected by CVE-2026-56761?
CVE-2026-56761 affects the hono software package prior to version 4.12.14.