How severe is CVE-2026-26118?

CVE-2026-26118 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-26118 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26118?

CVE-2026-26118 primarily affects Microsoft Azure Mcp Server. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-26118?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-26118 have an EU (EUVD) identifier?

Yes. CVE-2026-26118 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10689.

When was CVE-2026-26118 published?

CVE-2026-26118 was published on 2026-03-10 and last updated on 2026-06-17.

CVE-2026-26118

CVE-2026-26118 is a high-severity vulnerability in Microsoft Azure Mcp Server with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10689
Weakness: CWE-918
Affected product: Microsoft Azure Mcp Server
Published: 2026-03-10
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2026-26118?: Server-side request forgery (ssrf) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2026-26118?: CVE-2026-26118 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-26118 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26118?: CVE-2026-26118 primarily affects Microsoft Azure Mcp Server. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-26118?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-26118 have an EU (EUVD) identifier?: Yes. CVE-2026-26118 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10689.
When was CVE-2026-26118 published?: CVE-2026-26118 was published on 2026-03-10 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26118

Affected products (17)

cpe:2.3:a:microsoft:azure_mcp_server:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta10:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta11:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta12:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta13:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta14:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta15:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta16:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta5:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta6:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta7:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta8:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta9:*:*:*:*:*:*

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