{"cve":"CVE-2026-101084","nvd":{"published":"2026-09-27T21:17:02.163","modified":"2026-09-30T23:16:57.460","status":"Deferred","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","score":9.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","score":9.6},"cwes":["CWE-639"],"references":["https://github.com/obot-platform/obot/security/advisories/GHSA-vw82-7fv8-r6gp","https://www.vulncheck.com/advisories/obot-before-0.21.1-authorization-bypass-via-mcp-connect","https://github.com/obot-platform/obot/security/advisories/GHSA-vw82-7fv8-r6gp"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:48.555445741+00:00"},"epss":{"cve":"CVE-2026-101084","score":0.00346,"percentile":0.2786,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-vw82-7fv8-r6gp","url":"https://osv.dev/vulnerability/GHSA-vw82-7fv8-r6gp","summary":"Obot has an authorization bypass in /mcp-connect/{id} that allows any authenticated user to use any registered MCP server","modified":"2026-09-28T11:55:34.404271139Z","packages":[{"ecosystem":"Go","name":"github.com/obot-platform/obot","purl":"pkg:golang/github.com/obot-platform/obot","ranges":["<0.21.1"],"fixed":["0.21.1"]}]},{"id":"GO-2026-5678","url":"https://osv.dev/vulnerability/GO-2026-5678","summary":"Obot has an authorization bypass in /mcp-connect/{id} that allows any authenticated user to use any registered MCP server in github.com/obot-platform/obot","modified":"2026-09-28T11:55:34.404271139Z","packages":[{"ecosystem":"Go","name":"github.com/obot-platform/obot","purl":"pkg:golang/github.com/obot-platform/obot","ranges":["<0.21.1"],"fixed":["0.21.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}