CVE-2026-66055: Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift: TJSONProtocol accepts a single JSON string/number exceeding the configured size limit (multi-language)

Q: Which Apache Thrift bindings are affected?

The affected bindings are C++, Java, Go, netstd, Python, and Delphi. The issue affects Apache Thrift versions before 0.25.0.

Q: What configuration or input condition is relevant to exploitation?

The issue involves TJSONProtocol accepting a single JSON string or number that exceeds the configured size limit. An attacker would need to supply such oversized JSON data to a service using the affected protocol implementation.

Q: What should teams do to remediate the issue?

Upgrade Apache Thrift to version 0.25.0, which fixes the issue. The provided information does not specify an alternative mitigation for environments that cannot upgrade immediately.

Published Oct 2, 2026

Updated

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift C++, Java, Go, netstd, Python and Delphi bindings.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Affected Software

1 affected component

Apache Thrift<0.25.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Apache Thrift to a version that resolves this vulnerability.
Fixed in 0.25.0

Event History

Oct 2, 2026

CVE Published

via MITRE·12:49 PM

Data Sourced

via MITRE·12:49 PM

DescriptionWeakness

Frequently Asked Questions

Which Apache Thrift bindings are affected?

The affected bindings are C++, Java, Go, netstd, Python, and Delphi. The issue affects Apache Thrift versions before 0.25.0.

What configuration or input condition is relevant to exploitation?

The issue involves TJSONProtocol accepting a single JSON string or number that exceeds the configured size limit. An attacker would need to supply such oversized JSON data to a service using the affected protocol implementation.

What should teams do to remediate the issue?

Upgrade Apache Thrift to version 0.25.0, which fixes the issue. The provided information does not specify an alternative mitigation for environments that cannot upgrade immediately.

CVE-2026-66055: Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift: TJSONProtocol accepts a single JSON string/number exceeding the configured size limit (multi-language)

Affected Software

Remediation

Event History

Frequently Asked Questions

Which Apache Thrift bindings are affected?

What configuration or input condition is relevant to exploitation?

What should teams do to remediate the issue?

Company

Resources

Contact

Frequently Asked Questions

Which Apache Thrift bindings are affected?

What configuration or input condition is relevant to exploitation?

What should teams do to remediate the issue?