Data Amplification via Compression in Apache Thrift Go <0.25.0
CVE-2026-94637 Published on October 2, 2026
Apache Thrift: Go `THeaderTransport` does not bound the inflated size of a ZLIB frame
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.
Vulnerability Analysis
CVE-2026-94637 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Data Amplification Vulnerability?
The software does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output. An example of data amplification is a "decompression bomb," a small ZIP file that can produce a large amount of data when it is decompressed.
CVE-2026-94637 has been classified to as a Data Amplification vulnerability or weakness.
Products Associated with CVE-2026-94637
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Affected Versions
Apache Software Foundation Apache Thrift:- Before 0.25.0 is affected.