Improper access control in Key auth - CVE-2026-87940
Published: September 10, 2026
Vulnerability identifier: #VU148906
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-87940
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected module does not cache per user. A remote user can view another user's authentication keys
Affected software
Key auth
How to mitigate CVE-2026-87940
Install updates from vendor's website.
Key auth - update to 2.2.4