All vulnerabilities
CVE-2026-101084GHSA-vw82-7fv8-r6gpGO-2026-5678

obot before v0.21.1 Authorization Bypass via /mcp-connect

obot-platform obotGoLibraries & packages
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 30 Sep 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.28%Chance of exploitation activity in the next 30 days, higher than 19% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0.21.1Fixed versionCVE List
Published27 Sep 2026Updated 30 Sep 2026CVE List

What fixes it

  • 0.21.1obotCVE List
  • 0.21.1github.com/obot-platform/obot, GoOSVgo get github.com/obot-platform/obot@v0.21.1

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 3

  • obotaffected: all versions before 0.21.1CVE List
  • obotunaffected: 0.21.1CVE List
  • github.com/obot-platform/obot, Gofrom first release, fixed in 0.21.1OSV

References 2