CVE-2026-84461
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the two-factor login step let an attacker try unlimited password guesses for any account without triggering Zammad's normal lockout or rate limiting. The response also revealed whether a guess was correct, even before two-factor authentication was checked. This made it possible to brute-force weak or reused passwords. This issue is fixed in version 7.1.2.
- Published Sep 25, 2026
- CVSS 6.9 medium
- 0.3% chance of exploitation in the next 30 days (EPSS)
- A fix is available