Privilege Escalation Vulnerability in Apache Ranger
CVE-2026-40920

9.8CRITICAL

Key Information:

Vendor

Apache
Status
Apache Ranger
Vendor
CVE Published:
10 August 2026

What is CVE-2026-40920?

A privilege escalation vulnerability exists in Apache Ranger, affecting versions up to and including 2.8.0. This flaw allows unauthorized users to escalate their privileges through specially crafted URL parameters. To protect your system, it is critical to upgrade to version 2.9.0, where this vulnerability is resolved. Properly applying this update will help ensure the integrity and security of your Apache Ranger deployment.

Affected Version(s)

Apache Ranger 0 <= 2.8.0

References

https://lists.apache.org/thread/zh92fob9gqp196rvz3x9t0d2f...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Andrew Rukin (Arenadata)
.