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MinorCritical vulnerability

CVE-2026-88362 (CVSS 7.5)

NVD · officialPublished Sep 24, 2026Risk 23/100EPSS 0.2%

MuJS e892c9fdb contains an incorrect numeric conversion vulnerability in jsR_isindex() in jsrun.c. A specially crafted JavaScript input containing an excessively large numeric array index can cause an out-of-range floating-point value to be converted to an integer without proper range validation. This results in undefined behavior and can cause process termination, leading to denial of service.

CVSS
7.5
AV:NetworkAC:LowPR:NoneUI:NoneC:NoneI:NoneA:High

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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