CVE-2026-43869

HIGHNVD 7.37.3—

7.3

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.

CVSS v3: 7.3
EG Score: 7.3(high)
EPSS: 10.8%
KEV: Not listed

Published

May 5, 2026

Last Modified

May 6, 2026

Advisory Details (2)

Auto-updated May 6, 2026

No patch confirmed yet.

generic

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

http://www.openwall.com/lists/oss-security/2026/05/05/3

generic

https://lists.apache.org/thread/3hsgl1b69wzq3ry39scqbv2dhyl3j52r

Vendor Advisories for CVE-2026-43869(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

CVE-2026-43869
Microsoft Security Response Center (MSRC)
Apache Thrift: TSSLTransportFactory.java hostname verification

Frequently asked(5)

What is CVE-2026-43869?

CVE-2026-43869 is a high vulnerability published on May 5, 2026. 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.

When was CVE-2026-43869 disclosed?

CVE-2026-43869 was first published in the National Vulnerability Database on May 5, 2026, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-43869 actively exploited?

CVE-2026-43869 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-43869?

CVE-2026-43869 has a CVSS v3 base score of 7.3 (NVD).

How do I remediate CVE-2026-43869?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43869, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2026-43869

📅 Published

🔄 Last Modified

📋 Advisory Details (2)