What is CVE-2026-43871?

CVE-2026-43871 is a high-severity vulnerability in Apache Thrift, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-07-27.

How severe is CVE-2026-43871?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Apache Thrift

CVE-2026-43871

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in Apache Thrift Python, Go, PHP and Java bindings.This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the i…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Thrift
Apache Software Foundation Thrift — versions 0

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

security@apache.org (vendor-advisory, Release Notes)
security@apache.org (vendor-advisory, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-43871?: CVE-2026-43871 is a high-severity vulnerability in Apache Thrift, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-07-27.
How severe is CVE-2026-43871?: High severity. CVSS v3 base score is 7.5 out of 10.