CVE-2026-49231 PUBLISHED

Apache APISIX: Identity spoofing issue in APISIX opa plugin

Assigner: apache
Reserved: 28.05.2026 Published: 19.06.2026 Updated: 19.06.2026

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.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS Score: 2.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Vendor	Apache Software Foundation
Product	Apache APISIX
Versions	Default: unaffected affected from 3.5.0 to 3.16.0 (incl.)