fkie_cve-2025-62490
Vulnerability from fkie_nvd
Published
2025-10-16 16:15
Modified
2025-10-30 16:29
Severity ?
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
| URL | Tags | ||
|---|---|---|---|
| cve-coordination@google.com | https://bellard.org/quickjs/Changelog | Release Notes | |
| cve-coordination@google.com | https://issuetracker.google.com/434196651 | Exploit, Issue Tracking |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| quickjs_project | quickjs | * |
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"value": "In quickjs, in js_print_object, when printing an array, the function first fetches the array length and then loops over it.\u00a0The 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\u00a0become 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-\u003erecords\u00a0list, but once again, elements could be removed from the list during js_print_value\u00a0call."
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"id": "CVE-2025-62490",
"lastModified": "2025-10-30T16:29:11.183",
"metrics": {
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"published": "2025-10-16T16:15:39.270",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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