Protection mechanism failure in HFS - CVE-2026-61503
Published: October 6, 2026
Vulnerability identifier: #VU153319
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-61503
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass anti-brute-force login protections.
The vulnerability exists due to failure to invoke the failed-login event in the login API when handling an invalid username. A remote attacker can repeatedly submit login initiation requests with invalid usernames to bypass anti-brute-force login protections.
The issue affects plugin handling of failed login attempts for invalid usernames.
Affected software
HFS
How to mitigate CVE-2026-61503
Install security update from vendor's website.
HFS - update to 3.2.1