CVE-2022-23602

Nimforum is a lightweight alternative to Discourse written in Nim. In versions prior to 2.2.0 any forum user can create a new thread/post with an include referencing a file local to the host operating system. Nimforum will render the file if able. This can also be done silently by using NimForum's post "preview" endpoint. Even if NimForum is running as a non-critical user, the forum.json secrets can be stolen. Version 2.2.0 of NimForum includes patches for this vulnerability. Users are advised to upgrade as soon as is possible. There are no known workarounds for this issue.

• CWE-22
• CWE-22

• https://github.com/nim-lang/Nim/commit/cb894c7094fb49014f85815a9dafc38b5dda743ePatch, Third Party Advisory
• https://github.com/nim-lang/nimforum/security/advisories/GHSA-q3vh-x957-wr75Exploit, Patch, Third Party Advisory
• https://github.com/nim-lang/Nim/commit/cb894c7094fb49014f85815a9dafc38b5dda743ePatch, Third Party Advisory
• https://github.com/nim-lang/nimforum/security/advisories/GHSA-q3vh-x957-wr75Exploit, Patch, Third Party Advisory

Published

Feb 1, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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