What is CVE-2026-48804?

CVE-2026-48804 is a high-severity vulnerability in Miguelgrinberg Python-socketio, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-08-11.

How severe is CVE-2026-48804?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Miguelgrinberg Python-socketio

CVE-2026-48804

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 attachme…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Miguelgrinberg Python-socketio — versions < 5.16.4

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-48804?: CVE-2026-48804 is a high-severity vulnerability in Miguelgrinberg Python-socketio, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-08-11.
How severe is CVE-2026-48804?: High severity. CVSS v3 base score is 7.5 out of 10.