Vulnerability-Lookup

GHSA-C4HG-6933-X62X

Vulnerability from github – Published: 2026-04-13 15:31 – Updated: 2026-04-14 23:16

Summary

Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server

Details

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.

Severity ?

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/apache/skywalking-mcp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34476"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-14T23:16:30Z",
    "nvd_published_at": "2026-04-13T13:16:40Z",
    "severity": "HIGH"
  },
  "details": "Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP.\n\nThis issue affects Apache SkyWalking MCP: 0.1.0.\n\nUsers are recommended to upgrade to version 0.2.0, which fixes this issue.",
  "id": "GHSA-c4hg-6933-x62x",
  "modified": "2026-04-14T23:16:30Z",
  "published": "2026-04-13T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34476"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/skywalking-mcp"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/v0k1xyzzbtnpyrwxwyn36pbspr8rhjnr"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/13/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server"
}

CVE-2026-34476 (GCVE-0-2026-34476)

Vulnerability from cvelistv5 – Published: 2026-04-13 13:01 – Updated: 2026-04-13 15:29

Title

Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server

Summary

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.

Severity ?

No CVSS data available.

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

apache

References

URL

Tags

https://lists.apache.org/thread/v0k1xyzzbtnpyrwxw…

vendor-advisory

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache SkyWalking MCP	Affected: 0.1.0 (semver)

Credits

Andrea Cosentino <ancosen@gmail.com>

Show details on NVD website

JSON

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  "containers": {
    "adp": [
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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-34476",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-13T13:58:47.468228Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-13T13:59:29.737Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-04-13T15:29:57.926Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/13/4"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Apache SkyWalking MCP",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "status": "affected",
              "version": "0.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Andrea Cosentino \u003cancosen@gmail.com\u003e"
        }
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          "value": "Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP.\n\nThis issue affects Apache SkyWalking MCP: 0.1.0.\n\nUsers are recommended to upgrade to version 0.2.0, which fixes this issue."
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      "metrics": [
        {
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            "content": {
              "text": "important"
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            "type": "Textual description of severity"
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-918",
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      "providerMetadata": {
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        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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      "references": [
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          "tags": [
            "vendor-advisory"
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          "url": "https://lists.apache.org/thread/v0k1xyzzbtnpyrwxwyn36pbspr8rhjnr"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
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      "title": "Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server",
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  "cveMetadata": {
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    "assignerShortName": "apache",
    "cveId": "CVE-2026-34476",
    "datePublished": "2026-04-13T13:01:31.156Z",
    "dateReserved": "2026-03-28T02:38:58.575Z",
    "dateUpdated": "2026-04-13T15:29:57.926Z",
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  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-C4HG-6933-X62X

CVE-2026-34476 (GCVE-0-2026-34476)

Tags

Sightings

Nomenclature