CVE intelligence

CVE-2026-86536

Vulnerability intelligence

Published Oct 2, 2026Sources checked Oct 7, 2026

6.3MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-86536 and is rated Medium severity with a CVSS score of 6.3. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Oct 3, 2026

Release Notes

CISA KEVNot listedBased on the latest collected catalog

EPSS0.5%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-86536?

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.

Source: NVD