What is CVE-2026-10099?

CVE-2026-10099 is a medium-severity vulnerability in Xx-net, classified under CWE-1286. CVSS score: 4.0/10. Published 2026-05-29.

How severe is CVE-2026-10099?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Vulnerability in Xx-net

CVE-2026-10099

XX-Net V5.16.6 contains a WebSocket frame parsing vulnerability in the WebSocket_receive_worker routine of simple_http_server.py that allows attackers to cause corrupted application data by sending unmasked WebSocket frames. The server unc…

EPSS: 0.000 (6.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Xx-net — versions 0

Weakness classification (CWE)

CWE-1286

References

disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-10099?: CVE-2026-10099 is a medium-severity vulnerability in Xx-net, classified under CWE-1286. CVSS score: 4.0/10. Published 2026-05-29.
How severe is CVE-2026-10099?: Medium severity. CVSS v3 base score is 4.0 out of 10.