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.
Technical details
CVSS
7.5
AV:NetworkAC:LowPR:NoneUI:NoneC:NoneI:NoneA:High
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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