What is CVE-2025-66902?

CVE-2025-66902 is a high-severity vulnerability in Pithikos Websocket Server, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-01-20.

How severe is CVE-2025-66902?

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

Improper input validation in Pithikos Websocket Server

CVE-2025-66902

An input validation issue in in Pithikos websocket-server v.0.6.4 allows a remote attacker to obtain sensitive information or cause unexpected server behavior via the websocket_server/websocket_server.py, WebSocketServer._message_received components.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (29.0th percentile) — read the EPSS interpretation.

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:H/I:N/A:N.

Affected products

Pithikos Websocket_server — versions 0.6.4
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-66902?: CVE-2025-66902 is a high-severity vulnerability in Pithikos Websocket Server, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-01-20.
How severe is CVE-2025-66902?: High severity. CVSS v3 base score is 7.5 out of 10.