Medium 4.3Published Oct 7, 2026

CVE-2026-105139Obot 0.26.0 before 0.26.2 Authorization Bypass via vMCP Profile Prompts and Resources

Updated under an hour ago (2026-10-19 08:30 UTC)

Does this affect you?

It affects obot-platform obot. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for obot-platform obot

Exploited in the last 30 days

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: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

obot-platform obot obot_platform:obot (from the name)	from 0.26.0 before 0.26.2	CNA record

References

https://github.com/obot-platform/obot/commit/8d92701c2018a7b9dd6d692498fa5f41fdb912eapatch
https://github.com/obot-platform/obotproduct
https://github.com/obot-platform/obot/security/advisories/GHSA-xhpw-65qw-wj6mvendor-advisory
https://github.com/obot-platform/obot/releases/tag/v0.26.2release-notes
https://github.com/obot-platform/obot/blob/8cfac5d38baa4fa0719e7975b7542608ff8bc932/pkg/mcp/vmcp.go#L97technical-description
https://github.com/obot-platform/obot/blob/8cfac5d38baa4fa0719e7975b7542608ff8bc932/pkg/mcp/vmcp.go#L231technical-description
https://www.vulncheck.com/advisories/obot-0.26.0-before-0.26.2-authorization-bypass-via-vmcp-profile-prompts-and-resourcesthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.