Apache Thrift Int Underflow/OOB in 32bit THeaderTransport (0.24)
CVE-2026-82459 Published on October 2, 2026
Apache Thrift: Integer underflow in C++ THeaderTransport allows an unauthenticated remote peer to terminate a 32-bit process
Integer underflow (wrap or wraparound), Out-of-bounds write vulnerability in Apache Thrift C++ 32 bit THeaderTransport.
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-2026-82459 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 Types
What is an Integer underflow Vulnerability?
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This can happen in signed and unsigned cases.
CVE-2026-82459 has been classified to as an Integer underflow vulnerability or weakness.
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-82459 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-82459
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Affected Versions
Apache Software Foundation Apache Thrift:- Before 0.25.0 is affected.