CVE-2026-101084
obot before v0.21.1 Authorization Bypass via /mcp-connect
CRITICAL 9.3
En bref
- Source
- NVD
- EPSS
- EPSS 0.35 % · centile 28 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- VulnCheck
- Statut NVD
- 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.
Faiblesses (CWE)
- CWE-639 — Contournement d'autorisation par clé contrôlée par l'utilisateur (IDOR)
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 4.0 | CRITICAL 9.3 | 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 | VulnCheck |
| CVSS 3.1 | CRITICAL 9.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N | VulnCheck |
| CVSS 4.0 | CRITICAL 9.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · disclosure@vulncheck.com (Secondary) |
| CVSS 3.1 | CRITICAL 9.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N | NVD · disclosure@vulncheck.com (Secondary) |
Avis
- GHSA-vw82-7fv8-r6gp — Obot has an authorization bypass in /mcp-connect/{id} that allows any authenticated user to use any registered MCP server
- GO-2026-5678 — 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
Références européennes
- ENISA EUVD · EUVD-2026-88029
- GCVE · GCVE-0-2026-101084
Produits affectés
| Produit | Versions |
|---|---|
| obot-platform · obot | affected 0 < 0.21.1 ; unaffected 0.21.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |