CVE-2026-39998

UNKNOWN 0.0

Apache APISIX: Identity Injection via forward-auth Plugin Missing Header Cleanup

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Improper Input Validation vulnerability in Apache APISIX. The attacker can take advantage of certain configuration in forward-auth plugin to spoof identity headers. This issue affects Apache APISIX: from 2.12.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.

CWE	CWE-20
Vendor	apache software foundation
Product	apache apisix
Published	Jun 19, 2026
Last Updated	Jun 19, 2026

Stay Ahead of the Next One

Get instant alerts for apache software foundation apache apisix

Be the first to know when new unknown vulnerabilities affecting apache software foundation apache apisix are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

Affected Versions

Apache Software Foundation / Apache APISIX

2.12.0 ≤ 3.16.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

lists.apache.org: https://lists.apache.org/thread/vgkvy396010d7g6m0jrn4d3hjf2svlvv openwall.com: http://www.openwall.com/lists/oss-security/2026/06/19/4

Credits

🔍 Fernando Mecozzi