CVE-2026-26138

Microsoft Purview Elevation of Privilege Vulnerability

Published Mar 19, 2026 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Description
Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.

Analysis

AI-generated

Technical impact

Microsoft Purview is vulnerable to a server‑side request forgery that allows an unauthenticated attacker to trigger the service to make outbound requests, potentially giving the attacker the ability to reach internal resources and elevate privileges, which aligns with CWE‑918.

Affected Systems

All deployments of Microsoft Purview, also known as Office Purview, are potentially affected because the CVE entry does not list specific version constraints.

Risk and Exploitability

The flaw carries a CVSS score of 8.6 and an EPSS score of less than 1 %, indicating high severity but low likelihood of exploitation; the vulnerability is not listed in CISA’s KEV catalog, and while no public exploit has been reported, the typical exploitation path would involve crafting requests that cause Purview to resolve arbitrary URLs – a mechanism that is inferred from the description of a server‑side request forgery.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Microsoft Purview security update from the Microsoft Security Response Center.
  • If a patch is not yet available, restrict Purview’s outbound traffic to only required destinations.
  • Monitor Purview logs for suspicious external request activity.
  • Employ network segmentation and least‑privilege controls around Purview services.

Generated by OpenCVE AI on March 24, 2026 at 19:53 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft purview
CPEs cpe:2.3:a:microsoft:purview:-:*:*:*:*:*:*:*
Vendors & Products Microsoft purview
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.
Title Microsoft Purview Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft office Purview
Weaknesses CWE-918
CPEs cpe:2.3:a:microsoft:office_purview:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft office Purview
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C'}

Weaknesses
  • CWE-918

    Server-Side Request Forgery (SSRF)

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Jun 19, 2026, 6:17 PM
Reserved
Feb 11, 2026, 4:24 PM
Status
Analyzed
Published
Mar 19, 2026, 9:17 PM
Modified
Jun 17, 2026, 10:25 AM