CVE-2026-94636: CWE-409 Improper handling of highly compressed data (data amplification) in Apache Software Foundation Apache Thrift
CVE-2026-94636 is a high severity vulnerability in Apache Thrift prior to version 0.25.0 involving improper handling of highly compressed data leading to data amplification. The flaw arises from incorrect function call arguments and improper validation of input quantities in the Python bindings of Apache Thrift. This can cause resource exhaustion or denial of service conditions. The issue is fixed in Apache Thrift version 0.25.0.
AI Analysis
Technical Summary
Apache Thrift versions before 0.25.0 contain a vulnerability (CVE-2026-94636) in the Python bindings where improper handling of highly compressed data and incorrect function call arguments combined with insufficient validation of input quantities can lead to data amplification. This flaw is categorized under CWE-409 (Improper Locking), CWE-628, and CWE-1284. The vulnerability has a CVSS 4.0 score of 8.2 (high severity) indicating network attack vector with low complexity and no privileges required, but with high impact on availability. The vendor has released version 0.25.0 to address this issue.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication to cause significant resource consumption or denial of service by leveraging data amplification through malformed or highly compressed input data. The impact is high availability disruption of affected Apache Thrift Python bindings prior to version 0.25.0.
Mitigation Recommendations
Users should upgrade Apache Thrift to version 0.25.0 or later, which contains the official fix for this vulnerability. No other mitigations are specified by the vendor advisory.
CVE-2026-94636: CWE-409 Improper handling of highly compressed data (data amplification) in Apache Software Foundation Apache Thrift
Description
CVE-2026-94636 is a high severity vulnerability in Apache Thrift prior to version 0.25.0 involving improper handling of highly compressed data leading to data amplification. The flaw arises from incorrect function call arguments and improper validation of input quantities in the Python bindings of Apache Thrift. This can cause resource exhaustion or denial of service conditions. The issue is fixed in Apache Thrift version 0.25.0.
CVSS v4.0
Score 8.2high
Affected software
Apache Software Foundation
Apache Thrift
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Apache Thrift versions before 0.25.0 contain a vulnerability (CVE-2026-94636) in the Python bindings where improper handling of highly compressed data and incorrect function call arguments combined with insufficient validation of input quantities can lead to data amplification. This flaw is categorized under CWE-409 (Improper Locking), CWE-628, and CWE-1284. The vulnerability has a CVSS 4.0 score of 8.2 (high severity) indicating network attack vector with low complexity and no privileges required, but with high impact on availability. The vendor has released version 0.25.0 to address this issue.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication to cause significant resource consumption or denial of service by leveraging data amplification through malformed or highly compressed input data. The impact is high availability disruption of affected Apache Thrift Python bindings prior to version 0.25.0.
Mitigation Recommendations
Users should upgrade Apache Thrift to version 0.25.0 or later, which contains the official fix for this vulnerability. No other mitigations are specified by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-09-21T22:41:45.892Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abf9d25a43b0b3b89b45f00
Added to database: 10/02/2026, 12:01:41 UTC
Last enriched: 10/02/2026, 12:16:05 UTC
Last updated: 10/02/2026, 12:47:47 UTC
Views: 3
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