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CVE-2026-48586 is an improper handling of highly compressed data vulnerability in Apache Thrift affecting the C++, Java, Python, Go, D, and C/GLib bindings before version 0.24.0. The issue is associated with TZlibTransport decompression size limit handling, where highly compressed input can expand disproportionately during decompression. This creates a data amplification condition that can be triggered remotely and can force the application to process or allocate resources far beyond the size of the original input. The vulnerability is primarily an availability issue rather than a confidentiality or integrity flaw.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in Apache Thrift prior to 0.24.0 involving TZlibTransport decompression size limits.
A vulnerability in Apache Thrift involving TZlibTransport decompression size limits.
A high-severity data amplification / decompression size limit vulnerability in Apache Thrift TZlibTransport affecting multiple language bindings before version 0.24.0, with availability impact and potential denial of service.
An improper handling of highly compressed data (data amplification) vulnerability affecting Apache Thrift bindings in C++, Java, Python, Go, D, and C/GLib before version 0.24.0.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.