Detections
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Echo: hono: security update to 4.13.5

medium Tenable Self-Hosted Container Security Plugin ID 460008

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. Prior to 4.13.5,
 when parseBody() expands dot-separated form field names into nested objects with dot-notation parsing
 enabled, it does not limit the nesting depth or the total number of intermediate objects created. Empty
 segments are preserved, so one deeply dotted field name can encode one nesting level per byte, while a
 large number of shallowly dotted fields can create the same amplification across a request. A request body
 within a normal size limit can therefore allocate an object graph far larger than the request after the
 body has already been accepted. An unauthenticated attacker who can reach an affected endpoint can send
 concurrent requests that exhaust the JavaScript heap, terminate the server process, and leave the service
 unavailable until restart. Dot-notation parsing is not enabled by default, and applications using the
 default behavior are not affected. This issue is fixed in version 4.13.5. (CVE-2026-84364)

Solution

Update the hono library and its related packages to version 4.13.5 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-84364

Plugin Details

Severity: Medium

ID: 460008

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-84364

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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: 9/1/2026

Reference Information

CVE: CVE-2026-84364