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CVE-2026-86536: CWE-1321 Improperly controlled modification of object prototype attributes ('prototype pollution') in Apache Software Foundation Apache Thrift

0
Medium
VulnerabilityCVE-2026-86536cvecve-2026-86536cwe-1321
Published: 10/02/2026 (10/02/2026, 11:40:06 UTC)
Source: CVE Database V5
Vendor/Project: Apache Software Foundation
Product: Apache Thrift

Description

Improperly controlled modification of object prototype attributes ('prototype pollution') vulnerability in Apache Thrift all JS bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0 and re-generate JS code, which fixes the issue.

CVSS v4.0

Score 6.3medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
Low
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Affected software

Apache Software Foundation

Apache Thrift

Affected versions
>=0 <0.25.0
thrift
pkg:npm/thrift
Affected versions
>=0 <0.25.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/02/2026, 12:01:40 UTC

Technical Analysis

This vulnerability (CVE-2026-86536) involves improper control over modification of object prototype attributes, known as prototype pollution, in all JavaScript bindings of Apache Thrift versions prior to 0.25.0. Prototype pollution can lead to unexpected behavior in applications by altering the base object prototypes, potentially impacting application logic. The Apache Software Foundation fixed this issue in version 0.25.0, which requires users to upgrade and regenerate their JS code to mitigate the vulnerability.

Potential Impact

The vulnerability allows attackers to manipulate object prototype attributes in affected Apache Thrift JavaScript bindings, which can lead to altered application behavior. The CVSS 4.0 score of 6.3 indicates a medium severity impact with network attack vector, low attack complexity, no privileges required, no user interaction, and limited integrity impact. There are no known exploits in the wild at this time.

Mitigation Recommendations

Users should upgrade Apache Thrift to version 0.25.0 or later and regenerate their JavaScript code to apply the fix. This is the official remediation provided by the Apache Software Foundation.

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Technical Details

Data Version
5.2
Assigner Short Name
apache
Date Reserved
2026-09-07T22:00:32.242Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6abf99b2a43b0b3b89b26951

Added to database: 10/02/2026, 11:46:58 UTC

Last enriched: 10/02/2026, 12:01:40 UTC

Last updated: 10/03/2026, 04:45:56 UTC

Views: 11

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