CVE-2026-49871

Apache APISIX: cas-auth login CSRF / session injection issue

Published Jun 19, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
Description
Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations.

This defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity.

Actions the victim takes upstream are then attributed to attackers identity.


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

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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 Software Foundation
Apache Software Foundation apache Apisix
Vendors & Products Apache Software Foundation
Apache Software Foundation apache Apisix
Type Values Removed Values Added
Description Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations. This defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity. Actions the victim takes upstream are then attributed to attackers identity. 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: cas-auth login CSRF / session injection issue
Weaknesses CWE-352
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Jun 22, 2026, 4:21 PM
Reserved
Jun 2, 2026, 2:37 AM
Status
Analyzed
Published
Jun 19, 2026, 2:16 PM
Modified
Oct 26, 2026, 11:10 AM