# CVE-2026-66081: Apache Thrift access of uninitialized pointer in c_glib bindings

Source: https://junglewise.ai/threats/cve-2026-66081-access-of-uninitialized-pointer-vulnerability-in-apache-thrift-c  
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-2026-66081 · Severity: info · Published 2026-10-02

Apache Thrift is a framework for building cross-language RPC services. A memory safety vulnerability in the C GLib bindings could allow an attacker to access uninitialized memory, potentially leading to information disclosure or a denial of service depending on how the library is used.

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

## Quick answers

**Is CVE-2026-66081 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-66081 being exploited in the wild.

**How severe is CVE-2026-66081?** Informational severity, published 2 October 2026.

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

**Is there a fix for CVE-2026-66081?** 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-2026-66081 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-66081?** 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

An uninitialized pointer dereference vulnerability exists in the Apache Thrift c_glib bindings. This could occur during RPC processing when parsing untrusted input, allowing an attacker with network access to trigger memory access violations and leak or corrupt data.

## Affected products

- Apache Thrift before 0.25.0

## Timeline

- 2026-10-02: disclosed

## References

- [https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1](https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1)
- [https://lists.apache.org/thread/9d51ygo6hrsdo5ndwckbwt3mnp290m57](https://lists.apache.org/thread/9d51ygo6hrsdo5ndwckbwt3mnp290m57)

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