CVE-2025-62490 (GCVE-0-2025-62490)
Vulnerability from cvelistv5
Published
2025-10-16 15:51
Modified
2025-10-16 18:08
Severity ?
8.8 (High) - CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
CWE
Summary
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.
References
cve-coordination@google.comhttps://bellard.org/quickjs/Changelog
cve-coordination@google.comhttps://issuetracker.google.com/434196651
Impacted products
Vendor Product Version
QuickJS QuickJS Version: 2025-04-26
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