Improper Handling of Highly Compressed Data (Data Amplification) Affecting thrift package, versions <0.24.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RUBY-THRIFT-18388999
- published29 Jul 2026
- disclosed27 Jul 2026
- creditLTSHFWJT
Introduced: 27 Jul 2026
NewCVE-2026-49158 (opens in a new tab)How to fix?
Upgrade thrift to version 0.24.0 or higher.
Overview
thrift is a Ruby bindings package for Apache Thrift.
Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) through the ZLIB transform in lib/rb/lib/thrift/transport/header_transport.rb. An attacker can trigger memory and CPU exhaustion by sending a small compressed frame that expands to an unbounded decompressed payload. When HeaderTransport processes a ZLIB-encoded payload, it inflates the entire body without enforcing a decompressed-size limit. This lets a remote peer force the Ruby client or server to allocate and process far more data than expected, causing denial-of-service and breaking transports that read untrusted HeaderTransport messages.