CVE-2026-66053

Apache Thrift: Python TSSLSocket Hostname Matcher Import

5.9 MediumFix available

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.29%Unchanged since Jul 28, 2026

What each source reports

CVE List Score used 5.9

Apache Thrift: Python TSSLSocket Hostname Matcher Import

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

Record: CVE-2026-66053
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-297
Updated: 2026-11-02

EUVDEUVD-2026-49159 5.9

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

Record: EUVD-2026-49159
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-hwrj-9rr4-24xh 5.9

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

Record: GHSA-hwrj-9rr4-24xh
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-297
Updated: 2026-11-02

NVD 5.9

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

Record: CVE-2026-66053
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-297
Updated: 2026-11-02

OSV 5.9

Apache Thrift: Python TSSLSocket Hostname Matcher Import

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

Record: CVE-2026-66053
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-297
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-66053 5.9

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

Record: DEBIAN-CVE-2026-66053
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

Show 6 moreShow less

OSVGHSA-hwrj-9rr4-24xh 5.9

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

Record: GHSA-hwrj-9rr4-24xh
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-297
Updated: 2026-11-02

OSVPYSEC-2026-3927 5.9

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

Record: PYSEC-2026-3927
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVRHSA-2026:49837 8.4

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record: RHSA-2026:49837
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-66053 5.9

Record: UBUNTU-CVE-2026-66053
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVAZL-93980 No score

CVE-2026-66053 affecting package thrift for versions less than 0.24.0-1

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

Record: AZL-93980
Updated: 2026-11-02

OSVBIT-thrift-2026-66053 No score

Apache Thrift: Python TSSLSocket Hostname Matcher Import

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

Record: BIT-thrift-2026-66053
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`thrift` PyPI	before 0.24.0	0.24.0
`thrift` Azure Linux:3	before 0.24.0-1	0.24.0-1
`thrift` Bitnami	before 0.24.0	0.24.0
`thrift` Debian:12	All versions, plus listed versions 0.17.0-20.17.0-30.17.0-40.18.1-10.18.1-2 Show 16 moreShow less 0.19.0-10.19.0-20.19.0-2.10.19.0-2.1~exp10.19.0-30.19.0-40.20.0-10.22.0-10.22.0-20.22.0-30.22.0-40.23.0-10.23.0-20.23.0-30.24.0-10.24.0-2	None known
`thrift` Debian:13	All versions, plus listed versions 0.19.0-40.20.0-10.22.0-10.22.0-20.22.0-3 Show 6 moreShow less 0.22.0-40.23.0-10.23.0-20.23.0-30.24.0-10.24.0-2	None known
`thrift` Debian:14	before 0.23.0-3, plus listed versions 0.19.0-40.20.0-10.22.0-10.22.0-20.22.0-30.22.0-40.23.0-10.23.0-2	0.23.0-3
`thrift` PyPI	before 0.24.0, plus listed versions 0.10.00.11.00.13.00.14.00.14.1 Show 12 moreShow less 0.14.20.15.00.16.00.20.00.21.00.22.00.23.00.8.00.9.00.9.10.9.20.9.3	0.24.0
`perl-thrift` Red Hat:hummingbird:1 From an advisory covering 9 CVEs	before 0:0.24.0-0.1.hum1	0:0.24.0-0.1.hum1
`python3-thrift` Red Hat:hummingbird:1 From an advisory covering 9 CVEs	before 0:0.24.0-0.1.hum1	0:0.24.0-0.1.hum1
`thrift` Red Hat:hummingbird:1 From an advisory covering 9 CVEs	before 0:0.24.0-0.1.hum1	0:0.24.0-0.1.hum1

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Affected packages
Package	Affected	Fixed
`thrift-devel` Red Hat:hummingbird:1 From an advisory covering 9 CVEs	before 0:0.24.0-0.1.hum1	0:0.24.0-0.1.hum1
`thrift-glib` Red Hat:hummingbird:1 From an advisory covering 9 CVEs	before 0:0.24.0-0.1.hum1	0:0.24.0-0.1.hum1
`thrift-qt` Red Hat:hummingbird:1 From an advisory covering 9 CVEs	before 0:0.24.0-0.1.hum1	0:0.24.0-0.1.hum1
`python-thrift` Ubuntu:16.04:LTS	All versions, plus listed versions 0.9.1-2	None known
`python-thrift` Ubuntu:18.04:LTS	All versions, plus listed versions 0.9.1-2	None known
`thrift` Ubuntu:20.04:LTS	All versions, plus listed versions 0.11.0-60.13.0-2build10.13.0-2build2	None known
`thrift` Ubuntu:22.04:LTS	All versions, plus listed versions 0.13.0-6ubuntu10.13.0-6ubuntu20.13.0-6ubuntu30.13.0-70.16.0-2	None known
`thrift` Ubuntu:24.04:LTS	All versions, plus listed versions 0.17.0-40.19.0-20.19.0-2build10.19.0-2.1build40.19.0-2.1build5	None known
`thrift` Ubuntu:26.04:LTS	All versions, plus listed versions 0.19.0-4build10.22.0-30.22.0-3ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-66053 is a medium vulnerability (CVSS 5.9) in Apache Thrift, published July 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. Fixed in thrift 0.24.0.

References

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