Detections
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Echo: httpx2: security update to 2.12.0

high Tenable Cloud Security Plugin ID 472230

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 2.12.0, the HTTPX2 content decoders in
 src/httpx2/httpx2/_decoders.py fully inflate each gzip, deflate, br, or zstd network chunk before
 iter_bytes() or aiter_bytes() yields bounded pieces to the application. A 64 KiB compressed chunk can
 expand to approximately 64 MiB in one intermediate allocation, so an attacker-controlled or compromised
 server can cause severe memory pressure or out-of-memory process termination even when the application
 streams the response. This issue is fixed in version 2.12.0. (CVE-2026-84382)

Solution

Update the httpx2 library and its related packages to version 2.12.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-84382

Plugin Details

Severity: High

ID: 472230

Version: Revision 1.1

Type: Local

Published: 10/3/2026

Updated: 10/5/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.63

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-84382

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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-2026-84382