Allocation of Resources Without Limits or Throttling Affecting python-socketio package, versions <5.17.0-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.49% (40th percentile)

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  • Snyk IDSNYK-DEBIAN14-PYTHONSOCKETIO-20416091
  • published4 Oct 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

CVE-2026-48804  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Debian:14 python-socketio to version 5.17.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-socketio package and not the python-socketio package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

python-socketio is a Python implementation of the Socket.IO realtime client and server. The python-socketio server stores binary EVENT and ACK messages in memory while it waits to receive their binary attachments. Once all the attachments are received, these messages are then processed. Prior to version 5.16.4, an attacker can submit a binary message and intentionally omit sending one or more of its attachments to cause the message along with the partial list of received attachments to stay in memory for a long time. Version 5.16.4 takes the following measures to address this issue: Binary packets are only accepted from authenticated clients and, when a client disconnects, the server checks if there is a partial binary message being held for the client and deletes it.

CVSS Base Scores

version 3.1