CVE-2026-65942: CWE-297 Improper Validation of Certificate with Host Mismatch in Apache Software Foundation Apache Ranger
Apache Ranger versions up to 2.8.0 contain a TLS hostname verification vulnerability where the client code improperly validates certificates with host mismatches. This issue is addressed in version 2.9.0. The vulnerability has a high severity rating with a CVSS score of 7.5.
AI Analysis
Technical Summary
CVE-2026-65942 identifies a CWE-297 vulnerability in Apache Ranger client code affecting versions up to and including 2.8.0. The flaw involves improper validation of TLS certificates when the hostname does not match, potentially allowing an attacker to present a certificate for a different host without detection. This undermines the security guarantees of TLS connections. The vendor recommends upgrading to Apache Ranger version 2.9.0, which fixes this issue.
Potential Impact
The vulnerability allows an attacker to bypass TLS hostname verification, which can lead to man-in-the-middle attacks where the attacker intercepts or manipulates communications without detection. The CVSS score of 7.5 reflects a high impact on confidentiality with no required privileges or user interaction.
Mitigation Recommendations
Users should upgrade Apache Ranger to version 2.9.0 or later, where this TLS hostname verification issue is fixed. No other mitigation or temporary workaround is indicated in the available data.
CVE-2026-65942: CWE-297 Improper Validation of Certificate with Host Mismatch in Apache Software Foundation Apache Ranger
Description
Apache Ranger versions up to 2.8.0 contain a TLS hostname verification vulnerability where the client code improperly validates certificates with host mismatches. This issue is addressed in version 2.9.0. The vulnerability has a high severity rating with a CVSS score of 7.5.
CVSS v3.1
Score 7.5high
Affected software
Apache Software Foundation
Apache Ranger
pkg:maven/org.apache.ranger/ranger-clientRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-65942 identifies a CWE-297 vulnerability in Apache Ranger client code affecting versions up to and including 2.8.0. The flaw involves improper validation of TLS certificates when the hostname does not match, potentially allowing an attacker to present a certificate for a different host without detection. This undermines the security guarantees of TLS connections. The vendor recommends upgrading to Apache Ranger version 2.9.0, which fixes this issue.
Potential Impact
The vulnerability allows an attacker to bypass TLS hostname verification, which can lead to man-in-the-middle attacks where the attacker intercepts or manipulates communications without detection. The CVSS score of 7.5 reflects a high impact on confidentiality with no required privileges or user interaction.
Mitigation Recommendations
Users should upgrade Apache Ranger to version 2.9.0 or later, where this TLS hostname verification issue is fixed. No other mitigation or temporary workaround is indicated in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-07-23T16:26:02.359Z
- State
- PUBLISHED
Threat ID: 6a79aae9bf8831d53985a7dc
Added to database: 08/10/2026, 10:41:45 UTC
Last enriched: 08/17/2026, 15:28:13 UTC
Last updated: 09/22/2026, 13:47:47 UTC
Views: 35
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