CVE-2026-49871 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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References

Link	Providers
https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp

History

Fri, 19 Jun 2026 18:15:00 +0000

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		https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp
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'}`

MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-06-19T13:18:36.767Z

Updated: 2026-06-19T16:49:57.460Z

Reserved: 2026-06-02T02:37:57.807Z

Link: CVE-2026-49871

Vulnrichment

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NVD

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Redhat

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OpenCVE Enrichment

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