CVE-2026-34884

Apache SkyWalking MCP: SSRF via set_skywalking_url Tool and GraphQL Expression Injection in MCP Server

State: Published
Severity: 9.8 Critical
Published: Aug 18, 2026
Updated: Aug 19, 2026
Reserved: Mar 31, 2026

Description

SSRF via set_skywalking_url Tool and GraphQL expression injection 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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
Apache SkyWalking MCPApache Software Foundation	0.1.0Affected

References

https://lists.apache.org/thread/s447p6h5dfr02lx17v27phoksgb8mkkpvendor-advisory
http://www.openwall.com/lists/oss-security/2026/04/13/5

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