CVE-2026-26118

highpriority · track · 10EPSS 0.010 · 63 %ileexploit · PoCDEEUNLRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

1.00% (63rd) EPSS

CVSS 8.8 · high

Is it mine?

40 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

Server-side request forgery (ssrf) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedAzure MCP Server Tools 1.0.0 (NuGet)msrc_csaf
1.0.2:Security Update:https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
FixedAzure MCP Server Tools 1.0.0 (npm)msrc_csaf
1.0.2:Security Update:https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
FixedAzure MCP Server Tools 2.0.0 (NuGet)msrc_csaf
2.0.0-beta.17:Security Update:https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
FixedAzure MCP Server Tools 2.0.0 (PyPi)msrc_csaf
2.0.0-beta.17:Security Update:https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
FixedAzure MCP Server Tools 2.0.0 (npm)msrc_csaf
2.0.0-beta.17:Security Update:https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md
https://github.com/microsoft/mcp/blob/main/servers/Azure.Mcp.Server/CHANGELOG.md

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 2.8 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-918USCWE-918USCWE-918USCWE-918USCWE-918US

exploits (1)

Public proof-of-concept and weaponised exploit code.

j-dahl7/mcp-attack-detection-sentinelSentinel detection lab for MCP attack chains: CVE-2026-26118 SSRF token theft, tool poisoning, cross-server exfiltration, identity post-exploitation. Maps to OWASP Agentic Top 10. 5 analytics rules, 7 hunting queries, workbook. Companion to nineliveszerotrust.com.PoC · poc_in_github

affected products (40)

Products and version ranges known to be affected.

Microsoft Azure AD SSH Login extension for Linuxall versionscert_bundDEcpe:/a:microsoft:azure:ad_ssh_login_extension_for_linux
Microsoft Azure Arc Enabled Servers-Connected Machine Agentall versionscert_bundDEcpe:/a:microsoft:azure:arc_enabled_servers_-_connected_machine_agent
Microsoft Azure IoT Explorerall versionscert_bundDEcpe:/a:microsoft:azure:iot_explorer
Microsoft Azure Linux Virtual Machines with Azure Diagnostics extensionall versionscert_bundDEcpe:/o:microsoft:azure_linux:virtual_machines_with_azure_diagnostics_extension
Microsoft Azure MCP Server Toolsall versionscert_bundDEcpe:/a:microsoft:azure:mcp_server_tools
Microsoft Windows Admin Center in Azure Portalall versionscert_bundDEcpe:/a:microsoft:windows_admin_center:in_azure_portal
Microsoft Windows Azure Automation Hybrid Worker Extensionall versionscert_bundDEcpe:/o:microsoft:windows:azure_automation_hybrid_worker_extension
Microsoft Azure MCP Server Tools 1.0.0 (NuGet)1.0.0 → 1.0.2enisa_euvdEU
Microsoft Azure MCP Server Tools 1.0.0 (npm)1.0.0 → 1.0.2enisa_euvdEU
Microsoft Azure MCP Server Tools 2.0.0 (NuGet)2.0.0-beta.1 → 2.0.0-beta.17enisa_euvdEU
Microsoft Azure MCP Server Tools 2.0.0 (PyPi)2.0.0-beta.1 → 2.0.0-beta.17enisa_euvdEU
Microsoft Azure MCP Server Tools 2.0.0 (npm)2.0.0-beta.1 → 2.0.0-beta.17enisa_euvdEU
Microsoft Corp Azure MCP Server Tools≤ 2.0.0-beta.17fstec_bduRU
Microsoft Azure MCP Server Tools 1.0.0 (NuGet)all versionsfixedmsrc_csafUS
Microsoft Azure MCP Server Tools 1.0.0 (NuGet)< 1.0.2msrc_csafUS
Microsoft Azure MCP Server Tools 1.0.0 (npm)all versionsfixedmsrc_csafUS
Microsoft Azure MCP Server Tools 1.0.0 (npm)< 1.0.2msrc_csafUS
Microsoft Azure MCP Server Tools 2.0.0 (NuGet)all versionsfixedmsrc_csafUS
Microsoft Azure MCP Server Tools 2.0.0 (NuGet)< 2.0.0-beta.17msrc_csafUS
Microsoft Azure MCP Server Tools 2.0.0 (PyPi)all versionsfixedmsrc_csafUS

showing 20 of 40

advisories (5)

Vendor and ecosystem advisories describing this.

NCSC-2026-0082Kwetsbaarheden verholpen in Microsoft AzureNL2026-03-10csaf · ncsc_nlNL
Microsoft heeft kwetbaarheden verholpen in diverse Azure componenten.
WID-SEC-W-2026-0655Microsoft Azure Komponenten: Mehrere SchwachstellenDeutsch2026-03-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Admin Center, Microsoft Azure und Microsoft Azure Linux ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, und um falsche Informationen darzustellen.
msrc_CVE-2026-26118Azure MCP Server Tools Elevation of Privilege Vulnerability2026-03-10csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
GHSA-hhfx-wfvq-7g9cAzure MCP Server has Server-Side Request Forgery issue that allows authorized attacker to elevate privileges over a network2026-03-10ghsa · osvUS
Server-Side Request Forgery (SSRF) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.
PYSEC-2026-2669Azure MCP Server has Server-Side Request Forgery issue that allows authorized attacker to elevate privileges over a network2026-07-13vendor · osvUS
Server-Side Request Forgery (SSRF) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund msrc_csaf ncsc_nl NVD CVE.org MITRE

published 2026-03-10modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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