How severe is CVE-2026-34476?

CVE-2026-34476 has a CVSS 3.x base score of 7.1, 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 low, and availability none.

Is CVE-2026-34476 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34476?

CVE-2026-34476 affects Apache Skywalking Mcp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34476?

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-2026-34476 have an EU (EUVD) identifier?

Yes. CVE-2026-34476 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21918.

When was CVE-2026-34476 published?

CVE-2026-34476 was published on 2026-04-13 and last updated on 2026-06-17.

CVE-2026-34476

CVE-2026-34476 is a high-severity vulnerability in Apache Skywalking Mcp with a CVSS 3.x base score of 7.1. 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 7.1)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21918
Weakness: CWE-918
Affected product: Apache Skywalking Mcp
Published: 2026-04-13
Last modified: 2026-06-17

Description

Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP. This issue affects Apache SkyWalking MCP: 0.1.0. Users are recommended to upgrade to version 0.2.0, which fixes this issue.

Frequently asked questions

What is CVE-2026-34476?: Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP. This issue affects Apache SkyWalking MCP: 0.1.0. Users are recommended to upgrade to version 0.2.0, which fixes this issue.
How severe is CVE-2026-34476?: CVE-2026-34476 has a CVSS 3.x base score of 7.1, 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 low, and availability none.
Is CVE-2026-34476 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34476?: CVE-2026-34476 affects Apache Skywalking Mcp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34476?: 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-2026-34476 have an EU (EUVD) identifier?: Yes. CVE-2026-34476 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21918.
When was CVE-2026-34476 published?: CVE-2026-34476 was published on 2026-04-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:skywalking_mcp:*:*:*:*:*:*:*:*

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