CVE-2026-66053
Undergoing Analysis Undergoing Analysis - In Progress

Host Mismatch Certificate Validation in Apache Thrift Python

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apache Software Foundation

Description
Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift Python bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue. This replaces CVE-2026-41603

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Meta Information

Published
2026-07-27
Last Modified
2026-07-27
Generated
2026-07-27
AI Q&A
2026-07-27
EPSS Evaluated
N/A
NVD
CVE-2026-66053
EUVD
EUVD-2026-49159

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
apache thrift to 0.24.0 (exc)

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Exploitability

CWE
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KEV
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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.

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Executive Summary

This vulnerability is an improper validation of certificate with host mismatch in Apache Thrift Python bindings. It allows attackers to bypass certificate validation checks, potentially leading to man-in-the-middle attacks or unauthorized access to sensitive data.

Detection Guidance

This vulnerability involves improper certificate validation in Apache Thrift Python bindings. To detect it, check the version of Apache Thrift installed on your system. If it is before 0.24.0, the system is vulnerable. Run: thrift --version to verify the installed version.

Impact Analysis

This vulnerability could allow attackers to intercept or alter communications between systems using Apache Thrift Python bindings. It may lead to data breaches, unauthorized access, or loss of sensitive information if exploited.

Compliance Impact

This vulnerability could violate compliance requirements under GDPR and HIPAA by exposing personal or health data to unauthorized parties. Organizations using affected versions of Apache Thrift may face regulatory penalties or legal consequences.

Mitigation Strategies

Upgrade Apache Thrift Python bindings to version 0.24.0 or later to address the improper certificate validation issue.

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