CVE-2026-101084 (GCVE-0-2026-101084)

Vulnerability from cvelistv5 – Published: 2026-09-27 20:49 – Updated: 2026-09-27 20:49
VLAI
Title
obot before v0.21.1 Authorization Bypass via /mcp-connect
Summary
obot versions before v0.21.1 fail to enforce Access Control Rules on the /mcp-connect endpoint, allowing any authenticated user to connect to restricted MCP servers if they possess the server ID. Attackers can bypass authorization checks to access and manipulate sensitive backend systems through MCP tool calls using stored OAuth credentials.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version CPE status
obot-platform obot Affected: 0 , < 0.21.1 (semver)
Unaffected: 0.21.1 (semver)
guessed Create a notification for this product.
Date Public
2026-05-08 00:00
Show details on NVD website
To clipboard 

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      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-vw82-7fv8-r6gp)",
          "tags": [
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          "url": "https://github.com/obot-platform/obot/security/advisories/GHSA-vw82-7fv8-r6gp"
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  "cveMetadata": {
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    "datePublished": "2026-09-27T20:49:56.702Z",
    "dateReserved": "2026-09-27T20:29:07.432Z",
    "dateUpdated": "2026-09-27T20:49:56.702Z",
    "state": "PUBLISHED"
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      "percentile": "0.18371"
    },
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          }
        ],
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        "lastModified": "2026-09-28T20:55:27.360",
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          "cvssMetricV40": [
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                "Recovery": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
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                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
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                "valueDensity": "NOT_DEFINED",
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    }
  }
}



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