What is CVE-2026-47339?

CVE-2026-47339 is a high-severity vulnerability in Apache Apisix, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-06-19.

How severe is CVE-2026-47339?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Apache Apisix

CVE-2026-47339

Incorrect Authorization vulnerability in Apache APISIX. An attacker can capitalise on authz-casdoor plugin under default configuration to authenticate themselves with credentials from a different source. This issue affects Apache APISIX: from 2.14.1 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.

Vulnerability class: Broken Access Control

Published 2026-06-19 · last modified 2026-06-23.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (38.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Apache Apisix
Apache Software Foundation Apisix — versions 2.14.1

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

lists.apache.org/thread/lk4q5o855cocc7zq5wh1zlctfmcq6f76 (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)

Frequently asked questions

What is CVE-2026-47339?: CVE-2026-47339 is a high-severity vulnerability in Apache Apisix, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-06-19.
How severe is CVE-2026-47339?: High severity. CVSS v3 base score is 8.1 out of 10.