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Vulnerability · Published May 5, 2026 · Assigned by apache

CVE-2026-43869Apache Thrift: TSSLTransportFactory.java hostname verification

High 7.3

In plain English

A high-severity improper certificate validation in Apache Thrift from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.6%top 49.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12thriftno fix listedDEBIAN-CVE-2026-43869
Debian:13thriftno fix listedDEBIAN-CVE-2026-43869
Debian:14thrift0.23.0-3DEBIAN-CVE-2026-43869
Mavenorg.apache.thrift:libthrift0.23.0GHSA-7pwc-h2j2-rjgj
Ubuntu:22.04:LTSthriftno fix listedUBUNTU-CVE-2026-43869
Ubuntu:24.04:LTSthriftno fix listedUBUNTU-CVE-2026-43869
Ubuntu:25.10thriftno fix listedUBUNTU-CVE-2026-43869
Ubuntu:26.04:LTSthriftno fix listedUBUNTU-CVE-2026-43869
Ubuntu:26.10thriftno fix listedUBUNTU-CVE-2026-43869

Affected products (as reported)

VendorProductVersions
Apache Software Foundation Apache Thrift 0 – before 0.23.0

Weakness: CWE-297, CWE-295 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References