← Vulnerability feed

Vulnerability record · CVE-2026-69558 · published 20 August 2026

CVE-2026-69558: Microsoft partner center insecure direct object reference vulnerability

Microsoft · Partner Center

Authorization bypass through user-controlled key in Microsoft Partner Center allows an unauthorized attacker to disclose information over a network.

8.6 CVSS 3.1 High EPSS 0.97% · top 39.5% CWE-639 · Insecure direct object reference
8.6CVSS 3.1 base score
0.97%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
25 Aug 2026Last modified by NVD

Description

Authorization bypass through user-controlled key in Microsoft Partner Center allows an unauthorized attacker to disclose information over a network.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69558 Vendor Advisory

Track CVE-2026-69558 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-49035Microsoft Partner Center improper access control allows privilege elevationPartner.Microsoft.com contains an improper access control flaw (CWE-269) that lets an unauthenticated attacker elevate privileges over the network. M…KEVEPSS 1.3%analysed9.8CVE-2025-65041Microsoft partner center improper authorization vulnerabilityImproper authorization in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.EPSS 0.77%9.6CVE-2026-24303Microsoft partner center improper access control vulnerabilityImproper access control in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network.EPSS 0.39%8.8CVE-2025-29814Microsoft partner center improper input validation vulnerabilityImproper authorization in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network.EPSS 2.2%8.2CVE-2026-34327Microsoft partner center vulnerabilityExternally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over …EPSS 0.60%8.4CVE-2026-55255Langflow IDOR in responses endpoint allows cross-user flow executionLangflow before 1.9.1 has an insecure direct object reference in the /api/v1/responses endpoint. An authenticated attacker can supply another user's …KEVEPSS 0.89%analysed

Source: NIST National Vulnerability Database (record CVE-2026-69558), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.