Detections
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Echo: node-undici: security update to 7.3.0+dfsg1+~cs24.12.11-1+e1undici: security update to 6.28.0

medium Tenable Cloud Security Plugin ID 462135

Description

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

 - undici's retry interceptor can deliver a response whose body length does not match the Content-Length
 header exposed to the application after a retry or resume of a partial response. In undici before 6.28.0,
 from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a malicious or faulty upstream can
 return a partial response with a mismatched framing header, close the socket early, and have the retry
 interceptor assemble a body of a different length while the original Content-Length stays attached.
 Applications that use the retry interceptor and forward upstream headers and bodies downstream, such as
 proxies or gateways, may then emit an invalid HTTP response with a stale Content-Length, leading to
 downstream response desynchronization, connection hangs, or response corruption. Exploitation requires the
 retry interceptor enabled, an upstream returning a mismatched partial response, and a downstream forwarder
 that does not remove or recalculate Content-Length. The issue is fixed in undici 6.28.0, 7.29.0, and
 8.9.0. (CVE-2026-16728)

Solution

Update the undici library and its related packages to version 6.28.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-16728

Plugin Details

Severity: Medium

ID: 462135

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: 2.1

Percentile: 8.05

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-16728

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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: 7/31/2026

Vulnerability Publication Date: 7/29/2026

Reference Information

CVE: CVE-2026-16728

IAVB: 2026-B-0220-S