We log the mail for invalid password reset attempts.
As the email is provided by a user and the api is public this can be used by an attacker to forge log entries.
This is vulnerable to https://cwe.mitre.org/data/definitions/117.html
This problem affects only application generated with jwt or session authentication. Applications using oauth are not vulnerable.
Patches
version 1.7.0.
Workarounds
In AccountResource.kt you should change the line
log.warn("Password reset requested for non existing mail '$mail'");
to
log.warn("Password reset requested for non existing mail");