CVE-2026-94637: Apache Thrift: Go `THeaderTransport` does not bound the inflated size of a ZLIB frame

Severity: high (CVSS 8.2 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-02 · updated 2026-10-05
Weakness: CWE-409

Description

Improper handling of highly compressed data (data amplification) vulnerability in Apache Thrift Go 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 products

Apache Software Foundation Apache Thrift: before 0.25.0 — fixed in 0.25.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Thrift 0.25.0. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1
https://lists.apache.org/thread/6hxll1jcnod9gfr225tz7my08lpj3jmt

Get alerted when CVE-2026-94637 or the next vulnerability affects your stack