Improper Authentication in Apache APISIX - CVE-2026-47341
Published: August 25, 2026
Vulnerability identifier: #VU145250
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-47341
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication.
The vulnerability exists due to improper authentication in hmac-auth when validating HMAC-authenticated requests under certain configurations. A remote attacker can replay a captured token to bypass authentication.
The issue allows token reuse without expiry enforcement under affected configurations.
Affected software
Apache APISIX
How to mitigate CVE-2026-47341
Install security update from vendor's website.
Apache APISIX - update to 3.17.0