CVE-2026-94654: Apache Thrift: Python `TNonblockingServer` busy-loops and stops selecting all fds after an 8192-byte-boundary frame
Published Oct 2, 2026
·Updated
Loop with unreachable exit condition ('infinite loop') vulnerability in Apache Thrift python 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 Python bindings<0.25.0
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Thrift Python bindingsto a version that resolves this vulnerability.Fixed in 0.25.0
Event History
Oct 2, 2026
CVE Published
via MITRE·11:58 AM
Data Sourced
via MITRE·11:58 AM
DescriptionWeakness
Frequently Asked Questions
1
Which deployments are affected?
Deployments using the Apache Thrift Python bindings with TNonblockingServer are affected if they run a version before 0.25.0.
2
What condition triggers the failure?
The issue is triggered by a frame at an 8192-byte boundary. It can cause TNonblockingServer to busy-loop and stop selecting all file descriptors.
3
What should be done to remediate the issue?
Upgrade Apache Thrift to version 0.25.0, which fixes the vulnerability.