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.

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)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
472230	Echo: httpx2: security update to 2.12.0	Tenable Cloud Security	Echo Local Security Checks	Local	high
472230	Echo: httpx2: security update to 2.12.0	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
342561	Linux Distros Unpatched Vulnerability : CVE-2026-84382	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-84382

high

Tenable Plugins

high

high

high