Skywalking McpApplication · Apache
CVE-2026-34476
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedServer-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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceServer-Side Request Forgery vulnerability in Apache SkyWalking MCP allows attackers to make the server perform arbitrary requests by manipulating the SW-URL header, potentially exposing internal services or bypassing network restrictions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Skywalking McpApplication
>= 0.1.0, < 0.2.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify if Apache SkyWalking MCP is installedLook for the skywalking-mcp package in your installed applications or list running Java/Node processes related to SkyWalking MCP. Check common installation directories or package managers used (npm, maven, docker).Affected if Apache SkyWalking MCP is present on the system
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Determine the installed version of SkyWalking MCPRun 'npm list skywalking-mcp' if installed via npm, or check the version from the JAR/war file metadata, docker image tag, or pom.xml dependency version.Affected if Version is less than 0.2.0 (between 0.1.0 and 0.2.0 exclusive)
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Verify the MCP server endpoint is network-accessibleCheck server configuration files or environment variables for listen address and port. Test network connectivity to the MCP server port from external sources if applicable.Affected if The MCP server accepts external connections or is exposed beyond localhost
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Confirm SW-URL header processing capability existsReview the MCP server logs or configuration to verify the SW-URL header parameter is accepted and processed by the request handler.Affected if The SW-URL header parameter is accepted and processed by the server
You are affected if Apache SkyWalking MCP version 0.1.x is running and its server endpoint is accessible to process the SW-URL header.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped0.2.0
Upgrade Apache SkyWalking MCP to version 0.2.0 or later to resolve this SSRF vulnerability.
0.2.0
- 1. Identify the deployment mechanism for Apache SkyWalking MCP (e.g., dependency in pom.xml, package manager, or container image)
- 2. Locate the version configuration for SkyWalking MCP (typically version 0.1.0)
- 3. Update the version from 0.1.0 to 0.2.0 in your dependency configuration file
- 4. Rebuild or redeploy the application with the updated version
- 5. Verify the running version is 0.2.0 to confirm the fix was applied
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Skywalking Mcp
Scoped from the published advisory
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-34476 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-34476 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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