CVE-2026-86535: Apache Thrift: A JSON member name can stall the Node server's event loop indefinitely

Severity: high (CVSS 8.7 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-02 · updated 2026-10-02
Weakness: CWE-835

Description

Loop with unreachable exit condition ('infinite loop'), Improperly controlled modification of object prototype attributes ('prototype pollution') vulnerability in Apache Thrift NodeJS bindings with TJSONProtocol. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Affected products

Apache Software Foundation Apache Thrift: before 0.25.0 — fixed in 0.25.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Thrift 0.25.0. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2026-86535 or the next vulnerability affects your stack