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CVE-2026-29975

HIGH · CVSS 7.5 EPSS 0.17% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-05-08 · Last synced: 2026-06-07

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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-2026-29975
Severity
HIGH
CVSS
7.5
EPSS
0.17%

Original NVD Description

lwjson 1.8.1 contains an improper input validation vulnerability in the streaming JSON parser (lwjson_stream.c). The end-of-string detection logic incorrectly identifies escaped quote characters by only checking the immediately preceding character rather than counting consecutive backslashes, causing valid JSON strings ending with an escaped backslash (like "\\") to never terminate parsing. A remote attacker can send well-formed JSON to cause applications using lwjson_stream_parse() to hang indefinitely, resulting in denial of service.