Vulnerability	Vulnerable Version
H Use After Free Affected versions of this package are vulnerable to Use After Free via improper handling of callback references during the destruction of the `Channel` object. An attacker can cause a fatal interpreter crash by triggering DNS queries that result in the `Channel` object being garbage collected before the queries complete. This is particularly problematic in scenarios where: Channel objects are created per-request Multiple failed DNS queries are processed rapidly The application doesn't properly manage Channel lifecycle Note: This issue is much more likely to occur when using `event_thread=True` but could happen without it under the right circumstances. How to fix Use After Free? Upgrade `pycares` to version 4.9.0 or higher.	[,4.9.0)

Use After Free

Affected versions of this package are vulnerable to Use After Free via improper handling of callback references during the destruction of the Channel object. An attacker can cause a fatal interpreter crash by triggering DNS queries that result in the Channel object being garbage collected before the queries complete. This is particularly problematic in scenarios where:

Channel objects are created per-request
Multiple failed DNS queries are processed rapidly
The application doesn't properly manage Channel lifecycle

Note: This issue is much more likely to occur when using event_thread=True but could happen without it under the right circumstances.

How to fix Use After Free?

Upgrade pycares to version 4.9.0 or higher.

[,4.9.0)

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