Exposure of Data Element to Wrong Session in Apache APISIX - CVE-2026-82806
Published: October 1, 2026
Vulnerability identifier: #VU153087
CSH Severity: Low
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-2026-82806
CWE-ID: CWE-488
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to obtain unintended authorization.
The vulnerability exists due to improper session data isolation in authz-keycloak authorization scope handling when processing requests on the same route. A remote user can send requests on the same route to cause authorization scopes to persist into later requests and obtain unintended authorization.
The issue occurs under a supported authz-keycloak configuration.
Affected software
Apache APISIX
How to mitigate CVE-2026-82806
Install security update from vendor's website.
Apache APISIX - update to 3.7.0