There is a new pull request by jhe2 against master on the void-packages repository

https://github.com/jhe2/void-packages toxcore-cve-2021-44847
https://github.com/void-linux/void-packages/pull/34656

toxcore: update to 0.2.13.
Fixes CVE-2021-44847.

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A patch file from https://github.com/void-linux/void-packages/pull/34656.patch is attached