Detections
Analytics

Echo: hono: security update to 4.12.27

medium Tenable Cloud Security Plugin ID 465945

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Hono is a Web application framework that provides support for any JavaScript runtime. From 4.0.0 before
 4.12.27, cx() in hono/css composes class names from plain strings but marks the result as already escaped
 without HTML-escaping the input, allowing untrusted className values used in a JSX class attribute during
 server-side rendering to break out of the attribute and inject arbitrary markup. This issue is fixed in
 version 4.12.27. (CVE-2026-59895)

Solution

Update the hono library and its related packages to version 4.12.27 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-59895

Plugin Details

Severity: Medium

ID: 465945

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.58

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-59895

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 7/8/2026

Reference Information

CVE: CVE-2026-59895