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CVE-2026-10099

MEDIUM · CVSS 4 EPSS 0.13% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-05-29 · Last synced: 2026-06-28

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Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-10099
Severity
MEDIUM
CVSS
4
EPSS
0.13%

Original NVD Description

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 unconditionally reads 4 bytes as a masking key regardless of whether the MASK bit is set in the frame header, causing the first 4 bytes of payload to be consumed as a mask key and the remaining payload to be incorrectly XOR-decoded, resulting in data corruption alongside missing RSV bit, opcode, and FIN fragmentation validations.