CVE-2024-52521: Nextcloud Server has a potential hash collision for background jobs could skip queuing them

First published: Fri Nov 15 2024(Updated: )

Nextcloud Server is a self hosted personal cloud system. MD5 hashes were used to check background jobs for their uniqueness. This increased the chances of a background job with arguments falsely being identified as already existing and not be queued for execution. By changing the Hash to SHA256 the probability was heavily decreased. It is recommended that the Nextcloud Server is upgraded to 28.0.10, 29.0.7 or 30.0.0.

Credit: security-advisories@github.com

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