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DEBIAN-CVE-2026-84382

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-84382

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-84382

python-httpx2

Source reference: /affected/0/package/name

Affected versions
2.4.0-1

Source reference: /affected/0/versions

2.5.0-1

Source reference: /affected/0/versions

Fixed versions
2.12.0-1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.12.0-1"
          }
        ]
      }
    ],
    "package": {
      "name": "python-httpx2",
      "purl": "pkg:deb/debian/python-httpx2?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2.4.0-1",
      "2.5.0-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84382.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58239 · Revision 1
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Publisher date
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