Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. (CVE-2026-43869)
Description
Apache Thrift versions before 0.23.0 contain an improper validation of certificates with host mismatch vulnerability. This flaw can lead to confidentiality, integrity, and availability impacts. The issue is resolved in version 0.23.0, which users are advised to upgrade to.
CVSS v3.1
Score 7.3high
Affected software
pkg:deb/ubuntu/thrift?arch=source&distro=focalpkg:deb/ubuntu/thrift?arch=source&distro=jammypkg:deb/ubuntu/thrift?arch=source&distro=noblepkg:deb/ubuntu/thrift?arch=source&distro=questingpkg:deb/ubuntu/thrift?arch=source&distro=stonkingpkg:deb/ubuntu/thrift?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-43869 describes an improper validation of certificates with host mismatch vulnerability in Apache Thrift. This vulnerability affects versions prior to 0.23.0. The flaw involves the software failing to correctly validate the certificate hostname, potentially allowing an attacker to bypass security checks related to TLS certificate validation. The vulnerability has a CVSS 3.1 base score of 7.3, indicating a medium severity level. The issue is fixed in Apache Thrift version 0.23.0.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to compromise the confidentiality, integrity, and availability of communications secured by Apache Thrift by bypassing proper certificate hostname validation.
Mitigation Recommendations
Users should upgrade to Apache Thrift version 0.23.0 or later, where this vulnerability has been fixed. No other mitigation or temporary workaround is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-43869
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.10","Ubuntu:26.04:LTS"]
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad3f67b2cdf04f6566668f3
Added to database: 10/17/2026, 22:28:11 UTC
Last enriched: 10/18/2026, 01:36:37 UTC
Last updated: 10/18/2026, 01:36:37 UTC
Views: 4
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