CVE-2026-49231

Medium

Description

Authentication Bypass by Spoofing vulnerability in opa plugin. An attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin. This could allow the attacker to assume higher privileges on the upstream service. This issue affects Apache APISIX: from 3.5.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.

SeverityMedium

CVSS5.4

Exploit probability—

Product

Apache Apisix

PublishedJun 19, 2026

First seenJun 19, 2026

Weakness typeCWE-290CWE-290

How to fix

Update

apache apisix3.17.0 or later

Vendor advisories

lists.apache.org/thread/s1jd1vxm59p6ghx47xhmpjdk1cobo4hn

Affected products

Product	Affected versions	Fixed in
apache apisix	3.5.0 ≤ v < 3.17.0	3.17.0

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