CVE-2026-49872 — HIGH (8.1)

Q: How severe is CVE-2026-49872?

CVE-2026-49872 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-49872?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Apisix.

Vulnerability 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Apache	Apisix	>= 3.0.0, < 3.17.0

Related Weaknesses (CWE)

CWE-287

References

https://lists.apache.org/thread/bzjpo60ygxo7kxdqf7vw3l5zw2lh6m5kVendor AdvisoryMailing List
http://www.openwall.com/lists/oss-security/2026/06/19/15Third Party Advisory

FAQ

What is CVE-2026-49872?

CVE-2026-49872 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...

How severe is CVE-2026-49872?

CVE-2026-49872 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-49872?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Apisix.