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Medium

OpenClaw before 2026.9.4 Authorization Bypass via MCP App Standalone Ticket

Type: advisorySources: OSV

OpenClaw before 2026.9.4 contains an incorrect authorization vulnerability in the mcp.app.view method that allows read-scoped operators to execute MCP App tools requiring operator.write scope. Attackers with operator.read tokens can obtain a standalone ticket from mcp.app.view and redeem it at the MCP app view endpoint to invoke state-changing tools without proper authorization checks.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-102807
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 03:55 UTC · Revision 1

Source evidence

OpenClaw before 2026.9.4 Authorization Bypass via MCP App Standalone Ticket

core-osv · Original source

Published 29 Sept 2026, 17:22 UTC

OpenClaw before 2026.9.4 contains an incorrect authorization vulnerability in the mcp.app.view method that allows read-scoped operators to execute MCP App tools requiring operator.write scope. Attackers with operator.read tokens can obtain a standalone ticket from mcp.app.view and redeem it at the MCP app view endpoint to invoke state-changing tools without proper authorization checks.

osv:CVE-2026-102807
Complete source record
{
  "id": "d9990db2b116cfec02e4c9008ad71428c68849937c0e59cb09871eb86f86030b",
  "url": "https://osv.dev/vulnerability/CVE-2026-102807",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OpenClaw before 2026.9.4 Authorization Bypass via MCP App Standalone Ticket",
    "summary": "OpenClaw before 2026.9.4 contains an incorrect authorization vulnerability in the mcp.app.view method that allows read-scoped operators to execute MCP App tools requiring operator.write scope. Attackers with operator.read tokens can obtain a standalone ticket from mcp.app.view and redeem it at the MCP app view endpoint to invoke state-changing tools without proper authorization checks.",
    "evidence": "osv:CVE-2026-102807",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-102807",
      "aliases": [
        "CVE-2026-102807"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openclaw/openclaw",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3a9d69db306cd7f081e06254cb89c4bcc14a7107"
                },
                {
                  "fixed": "3bd8ec2b39b5f9e80aef0973f7d17eadc745b8f8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2026.9.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3bd8ec2b39b5f9e80aef0973f7d17eadc745b8f8"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
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          }
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      ],
      "modified": "2026-10-28T02:30:49.705193364Z",
      "provider": "osv",
      "references": [
        "https://docs.openclaw.ai/releases/2026.9.4",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102807.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-102807",
        "https://www.vulncheck.com/advisories/openclaw-before-2026.9.4-authorization-bypass-via-mcp-app-standalone-ticket",
        "https://github.com/openclaw/openclaw/commit/3bd8ec2b39b5f9e80aef0973f7d17eadc745b8f8",
        "https://github.com/openclaw/openclaw/pull/142661",
        "https://github.com/openclaw/openclaw",
        "https://github.com/openclaw/openclaw/blob/1391f7cd2d40ab5bbcf2f5f831d3a64f520e72d7/src/gateway/mcp-app-standalone.ts#L209-L215"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102807.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-102807",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517923,
  "published_at": "2026-09-29T17:22:40.44+00:00"
}