# CVE-2026-66054: Apache Thrift data amplification in C++ bindings

Source: https://junglewise.ai/threats/cve-2026-66054-allocation-of-resources-without-limits-or-throttling-improper  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-02. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-66054 · Severity: info · Published 2026-10-02

Apache Thrift is a framework for building cross-language services and APIs. The C++ bindings contain a vulnerability where compressed data is not properly throttled, allowing attackers to trigger excessive resource consumption by sending specially crafted compressed payloads. An attacker could cause a denial of service by exhausting server resources.

Technologies: [Apache Thrift](https://junglewise.ai/threats/technologies/thrift). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-66054 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-66054 being exploited in the wild.

**How severe is CVE-2026-66054?** Informational severity, published 2 October 2026.

**Which products and versions are affected?** Apache Thrift before 0.25.0.

**Is there a fix for CVE-2026-66054?** Yes: fixed in 0.25.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-66054 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-66054?** Check whether you run Apache Thrift at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 0.25.0

## Technical details

The C++ bindings in Apache Thrift lack proper limits or throttling when handling highly compressed data, leading to a data amplification vulnerability (CWE-770, CWE-409). An unauthenticated attacker on the network can send specially crafted compressed payloads to trigger unbounded resource allocation. This enables denial-of-service attacks without requiring prior authentication or user interaction.

## Affected products

- Apache Thrift before 0.25.0

## Timeline

- 2026-10-02: disclosed
- 2026-10-02: patched

## References

- [https://conan.io/center](https://conan.io/center)
- [https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1](https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1)

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