Advisory severityMedium5.9Red Hat Linux

Medium [CVE-2026-66053] Apache Thrift Python bindings: Information disclosure due to improper certificate validation

This medium-severity Red Hat Linux advisory covers CVE-2026-66053 affecting Red Hat Hardened Images, Red Hat OpenShift Container Platform 4.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-66053 Source published Jul 27, 2026Source updated Jul 27, 2026

VulniPulse record published Jul 29, 2026Record updated Aug 13, 2026

CVE-2026-66053

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

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 This vulnerability, stemming from improper validation of certificates with host mismatch, could allow a remote attacker to intercept and access sensitive information.

The issue occurs when the Python client fails to adequately verify the server's certificate against its hostname, potentially enabling a man-in-the-middle (MITM) attack and leading to information disclosure.

While Red Hat Enterprise Linux AI is not affected, OpenShift Container Platform, Red Hat OpenShift Update Service, and Confidential Compute Attestation are impacted where these bindings are used in network communication. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Weakness: CWE-295. Affected Red Hat products: Red Hat Hardened Images; Red Hat OpenShift Container Platform 4.

Red Hat fixing advisory: RHSA-2026:49837.

Affected versions

< 0.24.0

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Fixed versions

0.24.0
thrift-main-0.24.0-0.1.hum1
RHSA-2026:49837

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Mitigation

Upgrade to a fixed release: 0.24.0, thrift-main-0.24.0-0.1.hum1, RHSA-2026:49837. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Discussion(0)

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