CVE-2025-62490

[CVE catalog]

Severity

Unknown

Published

Oct 16, 2025, 4:15:39 PM UTC

Updated

Sep 1, 2026, 8:05:55 PM UTC

Source

[NVD] · [CVE record]

EPSS

0.41% · Oct 25, 2026

In quickjs, in js_print_object, when printing an array, the function first fetches the array length and then loops over it. The issue is, printing a value is not side-effect free. An attacker-defined callback could run during js_print_value, during which the array could get resized and len1 become out of bounds. This results in a use-after-free.A second instance occurs in the same function during printing of a map or set objects. The code iterates over ms->records list, but once again, elements could be removed from the list during js_print_value call.