SB2026092919 - Cross-site scripting in hono

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Main Vulnerability Database SB2026092919

SB2026092919 - Cross-site scripting in hono

Published: September 29, 2026 Updated: September 30, 2026

Security Bulletin ID SB2026092919
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2026-93981)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]


The vulnerability allows a remote attacker to inject arbitrary HTML and execute cross-site scripting in the application's origin.

The vulnerability exists due to improper neutralization of input during web page generation in hono/jsx server-side rendering boundary components when rendering an attacker-controlled plain string directly in an affected position. A remote attacker can supply a crafted string that is emitted as markup to inject arbitrary HTML and execute cross-site scripting in the application's origin.

User interaction is required to view the server-rendered page containing the crafted string.


Remediation

Install update from vendor's website.

References