CVE-2026-49872

Apache APISIX: Improper authentication in cas-auth plugin

Published Jun 19, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Improper Authentication vulnerability in Apache APISIX.

When the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source.
This issue affects Apache APISIX: from 3.0.0 through 3.16.0.

Users are recommended to upgrade to version 3.17.0, which fixes the issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apache
Apache apisix
Vendors & Products Apache
Apache apisix
Type Values Removed Values Added
Description Improper Authentication vulnerability in Apache APISIX. When the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source. This issue affects Apache APISIX: from 3.0.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.
Title Apache APISIX: Improper authentication in cas-auth plugin
Weaknesses CWE-287
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Jun 22, 2026, 4:30 PM
Reserved
Jun 2, 2026, 3:54 AM
Status
Analyzed
Published
Jun 19, 2026, 2:16 PM
Modified
Oct 26, 2026, 11:10 AM