CVE-2026-66053: thrift — Fix

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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CVSS v3.1 Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0021

Probability of exploitation

0.12%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-297 CWE-297

Affected Products

Vendor	Product	Versions
apache	thrift	< 0.24.0

References

Advisories & Patches

https://lists.apache.org/thread/w4k5dnv1x58knwlhpo9x0or5xh220y65

Other References

https://lists.apache.org/thread/7v3jhgwfbmhx42424phydlnzb109g8b9

Frequently Asked Questions

What is CVE-2026-66053? +

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 It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2026-66053? +

CVE-2026-66053 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0021, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-66053? +

CVE-2026-66053 affects products from apache, specifically: thrift. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-66053? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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