CVE-2026-65942

Analyzed Analyzed - Analysis Complete

TLS Hostname Verification Bypass in Apache Ranger Client

Publication date: 2026-08-10

Last updated on: 2026-10-24

Assigner: Apache Software Foundation

Description

TLS hostname verification issue in Apache Ranger Client Code in versions <= 2.8.0. Users are recommended to upgrade to version 2.9.0, which fixes this issue.

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Meta Information

Published

2026-08-10

Last Modified

2026-10-24

Generated

2026-11-08

AI Q&A

2026-08-10

EPSS Evaluated

2026-11-07

NVD

CVE-2026-65942

EUVD

EUVD-2026-55247

Affected Vendors & Products

Vendor	Product	Version / Range
apache	ranger	to 2.9.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-297	The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.

Attack-Flow Graph

Executive Summary

CVE-2026-65942 is a TLS hostname verification flaw in Apache Ranger Client Code affecting versions up to 2.8.0. The issue allows clients to improperly accept TLS certificates issued for other hostnames, potentially enabling man-in-the-middle attacks or unauthorized access.

Detection Guidance

This vulnerability involves improper TLS hostname verification in Apache Ranger Client Code. To detect it, check the Apache Ranger version running on your system. If it is version 2.8.0 or lower, the system is vulnerable. Use commands like 'ranger-admin --version' or inspect package managers (e.g., 'rpm -qa | grep ranger' or 'dpkg -l | grep ranger') to verify the installed version.

Impact Analysis

This vulnerability could allow attackers to intercept or alter communications between clients and servers by exploiting improper TLS certificate validation. This may lead to unauthorized access to sensitive data or systems.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling man-in-the-middle attacks or unauthorized access due to improper TLS hostname verification. Such attacks may lead to data interception or exposure, violating confidentiality requirements in these regulations.

Mitigation Strategies

Upgrade Apache Ranger to version 2.9.0 or later to address the TLS hostname verification flaw in the client code.

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