Detections
Analytics

Echo: httpx2: security update to 2.11.0

medium Tenable Self-Hosted Container Security Plugin ID 472223

Description

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

 - HTTPX2 is a next generation HTTP client for Python. Prior to 2.11.0, FileField.render_headers() in
 src/httpx2/httpx2/_multipart.py directly interpolates attacker-controlled content_type values and custom
 headers from the files= three-element (filename, content, content_type) tuple and the files= four-element
 (filename, content, content_type, headers) tuple into multipart/form-data part headers without validating
 header names or values. CR or LF characters can terminate a part header, inject additional part headers,
 or end the part header block early, allowing a downstream multipart parser to treat attacker-supplied
 lines as genuine headers and potentially alter part semantics or bypass header-based checks. This issue is
 fixed in version 2.11.0. (CVE-2026-84379)

Solution

Update the httpx2 library and its related packages to version 2.11.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-84379

Plugin Details

Severity: Medium

ID: 472223

Version: Revision 1.1

Type: Local

Published: 10/3/2026

Updated: 10/3/2026

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:P/A:N

CVSS Score Source: CVE-2026-84379

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: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: 10/3/2026

Vulnerability Publication Date: 9/2/2026

Reference Information

CVE: CVE-2026-84379