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CVE-2026-56761

CVE-2026-56761 · hono - HTML Injection via Improper JSX Attribute Name Handling in SSR

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.3 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • hono

    Versions
    • ≥ 0, < 4.12.14: Affected (semver)
    • 4.12.14: Not affected (semver)

    Update to 4.12.14

  • hono npm

    Affected ranges
    • SEMVER: < 4.12.14

    Update to 4.12.14

Original sources

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