Apache APISIX Auth Bypass via OPA Plugin ID Spoofing (v3.5.0-3.16.0)
CVE-2026-49231 Published on June 19, 2026

Apache APISIX: Identity spoofing issue in APISIX opa plugin
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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-49231 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE

Weakness Type

Authentication Bypass by Spoofing

This attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.


Products Associated with CVE-2026-49231

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Apache Apisix
 

Affected Versions

Apache Software Foundation Apache APISIX:

Exploit Probability

EPSS
0.36%
Percentile
28.52%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.