Medium severity · published Jul 27, 2026
CVE-2026-66053
Apache Thrift: Python TSSLSocket Hostname Matcher Import
5.9
CVSS
0.3%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AT
Apache Thrift · Apache Software Foundation
before 0.24.0 · source: vendor
TH
Thrift · Apache
before 0.24.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-66053
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66053
Release Notes
https://lists.apache.org/thread/7v3jhgwfbmhx42424phydlnzb109g8b9
Vendor Advisory
https://lists.apache.org/thread/w4k5dnv1x58knwlhpo9x0or5xh220y65
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