Quick answers
- Is CVE-2026-66331 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-66331 being exploited in the wild.
- How severe is CVE-2026-66331?
- Informational severity, published 2 October 2026.
- Which products and versions are affected?
- Apache Thrift before 0.25.0.
- Is there a fix for CVE-2026-66331?
- 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-2026-66331 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-66331?
- 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 vulnerability is an allocation of resources without limits or throttling in the Delphi bindings of Apache Thrift's buffered transport. An attacker with network access can send requests that cause unbounded memory allocation, leading to resource exhaustion. Fixing requires upgrade to version 0.25.0 or later.
Affected products
- Apache Thrift before 0.25.0