1Panel is an open source Linux server operation and maintenance management panel. The password verification in the source code uses the != symbol instead hmac.Equal. This may lead to a timing attack vulnerability. This vulnerability is fixed in 1.10.3-lts.
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.