Apache disclosed two important-severity vulnerabilities affecting the SkyWalking ecosystem: CVE-2025-54057, a stored cross-site scripting flaw in Apache SkyWalking through version 10.2.0, and CVE-2026-34476, a server-side request forgery issue in Apache SkyWalking MCP version 0.1.0. The XSS bug was attributed to improper neutralization of script-related HTML tags in web content, while the SSRF flaw was tied to handling of the SW-URL header in the MCP server.
Apache advised users to upgrade SkyWalking to version 10.3.0 and SkyWalking MCP to version 0.2.0 to address the vulnerabilities. The disclosures were published on the oss-sec mailing list, with Vinh Nguyễn Quang credited for reporting the SkyWalking XSS issue and Andrea Cosentino credited for reporting the SkyWalking MCP SSRF flaw.

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Apache disclosed CVE-2025-54057, a stored cross-site scripting vulnerability affecting Apache SkyWalking versions through 10.2.0. The advisory rated the issue as important, credited Vinh Nguyễn Quang as the reporter, and recommended upgrading to SkyWalking 10.3.0.
Apache disclosed CVE-2026-34476, an important-severity server-side request forgery vulnerability in Apache SkyWalking MCP 0.1.0 caused by the SW-URL header in the MCP server. The advisory credited Andrea Cosentino as the reporter and advised users to upgrade to version 0.2.0.
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