CVE-2026-105139: Incorrect Authorization in obot-platform obot
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.
CVSS v4.0
Score 5.3medium
Affected software
obot-platform
obot
pkg:github/obot-platform/obotRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-105139 is an authorization bypass vulnerability in obot-platform's obot product affecting versions >=0.26.0 and <0.26.2. The flaw allows authenticated users with any vMCP profile to access prompts, resources, and resource templates of components they are not granted access to. This is due to profile enforcement being applied only on tools, not on prompts or resources accessible via the vMCP owner's shared component connection.
Potential Impact
The vulnerability enables authenticated users to bypass intended authorization controls and access ungranted components' prompts and resources. This could lead to unauthorized information disclosure or misuse of resources within the obot platform. The CVSS 4.0 base score is 5.3, indicating a medium severity impact with network attack vector, low complexity, and no user interaction required.
Mitigation Recommendations
A fix is available in obot version 0.26.2 or later. Users should upgrade to version 0.26.2 or above to remediate this authorization bypass vulnerability. No additional mitigation guidance is provided or required beyond applying the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-03T13:40:47.067Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac63fca2cdf04f6564b28c6
Added to database: 10/07/2026, 12:49:14 UTC
Last enriched: 10/07/2026, 13:04:51 UTC
Last updated: 10/07/2026, 18:56:12 UTC
Views: 15
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