Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pypa / thrift/PYSEC-2026-3927
Advisory ID pypa/thrift/PYSEC-2026-3927
Aliases CVE-2026-66053
GHSA-hwrj-9rr4-24xh
PYSEC-2026-3927
Summary Apache Thrift Python bindings have a Improper Validation of Certificate with Host Mismatch vulnerabilit 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
Status Published
Exploitability 0.5
Weighted Severity 5.3
Risk 2.6
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 5.9 https://github.com/pypa/advisory-database/blob/main/vulns/thrift/PYSEC-2026-3927.yaml
Reference id Reference type URL
https://github.com/apache/thrift
https://pypi.org/project/thrift
7v3jhgwfbmhx42424phydlnzb109g8b9 Advisory https://lists.apache.org/thread/7v3jhgwfbmhx42424phydlnzb109g8b9
CVE-2026-66053 https://nvd.nist.gov/vuln/detail/CVE-2026-66053
GHSA-hwrj-9rr4-24xh https://github.com/advisories/GHSA-hwrj-9rr4-24xh
w4k5dnv1x58knwlhpo9x0or5xh220y65 Advisory https://lists.apache.org/thread/w4k5dnv1x58knwlhpo9x0or5xh220y65
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/pypa/advisory-database/blob/main/vulns/thrift/PYSEC-2026-3927.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.