Medium severity · published Oct 1, 2026
CVE-2026-82806
Apache APISIX: cross-request permission pollution via static permission list mutation
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
Exposure of data element to wrong session vulnerability in Apache APISIX.
This issue affects Apache APISIX: from 2.3.0 before 3.7.0.
Under a supported authz-keycloak configuration, a request's authorization scope could persist into later requests on the same route, leading to unintended authorization expansion and inconsistent access-control decisions.
Users are recommended to upgrade to version 3.7.0 or higher, which fixes the issue.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache APISIX · Apache Software Foundation
2.3.0 before 3.7.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82806
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82806
vendor-advisory
https://lists.apache.org/thread.html/wvkv2b4oy2fh9v79d30gtsy0bhqmzcdd
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