CVE-2026-43871 Apache Software Foundation CVE debrief

Who should care

Users of Apache Thrift Python, Go, PHP and Java bindings should be aware of this vulnerability and take steps to upgrade to version 0.24.0. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review and update affected systems.

Technical summary

The CVE-2026-43871 vulnerability is an Infinite Loop vulnerability in Apache Thrift Python, Go, PHP and Java bindings. This issue affects Apache Thrift: before 0.24.0. The vulnerability has a CVSS score of 8.7 and a severity of HIGH. Users of Apache Thrift Python, Go, PHP and Java bindings should be aware of this vulnerability and take steps to upgrade to version 0.24.0. The CVE record was published on 2026-07-27T12:16:44.413Z and has not been modified since then. Evidence is limited to CVE and NVD details. Defenders should verify affected Apache Thrift deployments and review vendor guidance.

Defensive priority

High priority should be given to upgrading to version 0.24.0, which fixes the issue. Review and update affected systems.

Recommended defensive actions

• Upgrade to version 0.24.0 of Apache Thrift
• Review and update affected systems
• Monitor for potential exploitation
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-07-27T12:16:44.413Z and has not been modified since then. The NVD entry is currently being reviewed. Evidence is limited to CVE and NVD details. Defenders should verify affected Apache Thrift deployments and review vendor guidance.

Official resources