CRITICALpublic-safe

CVE-2026-101084

NVD: 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. NVD: Attackers can bypass authorization checks to access and manipulate sensitive backend systems through MCP tool calls using stored OAuth credentials. OSV: obot before v0.21.1 Authorization Bypass via /mcp-connect

CVSS
9.3 Severity
CRITICAL EPSS
0.0028 (18) KEV
-

Source-published summary

Possible impact

Source describes authenticated boundary. Possible impact: This critical severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for authenticated boundary.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Remediation reference present; patch status requires confirmation in the linked advisory.

Why it matters

Source describes authenticated boundary. Possible impact: This critical severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for authenticated boundary.; CVSS 9.3 (CRITICAL); EPSS percentile 18; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

authenticated boundary

Impact tags

authenticated boundary review

Urgency reasons

CVSS CRITICALvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.