CVE-2026-105139

Obot 0.26.0 before 0.26.2 Authorization Bypass via vMCP Profile Prompts and Resources

MEDIUM
4.3
CVSS Score
Published: October 7, 2026 at 12:18 PM UTC
Updated: October 7, 2026 at 03:17 PM UTC
1 product affected across 1 vendorObot

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Obot 0.26.0 before 0.26.2 contains an authorization bypass vulnerability that allows authenticated users matching any vMCP profile to reach prompts and resources of ungranted components. Because profiles were enforced only on tools, attackers can access prompts, resources, and resource templates through the vMCP owner's shared component connection.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.26.0 ≤ v < 0.26.20.26.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863

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