memos is a privacy-first, lightweight note-taking service. In memos 0.13.2, an SSRF vulnerability exists at the /o/get/httpmeta that allows unauthenticated users to enumerate the internal network and receive limited html values in json form. This vulnerability is fixed in 0.16.1.
https://securitylab.github.com/advisories/GHSL-2023-154_GHSL-2023-156_memos
https://github.com/usememos/memos/commit/6ffc09d86a1302c384ef085aa70c7bddb3ce7ba9