The audit log notifications included the full IP address of the acting user. This could be obtained by third-party servers such as SMTP relays, or spam filters.
This issue has been addressed in Weblate 5.12 via https://github.com/WeblateOrg/weblate/pull/15102.
Thanks to micael1 for reporting this issue at HackerOne.
{
"cwe_ids": [
"CWE-359"
],
"github_reviewed_at": "2025-06-16T14:52:56Z",
"nvd_published_at": "2025-06-16T21:15:24Z",
"severity": "LOW",
"github_reviewed": true
}