CVE-2026-101084

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-27. A secondary CVSS source baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 9.6Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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 v3
9.6
EG Score
9.6CRITICALhigh confidence
EG Risk
59
EG Risk 59/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity96% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
18th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 27, 2026

Last Modified

September 30, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
Patch available. Sources: github.
github Patch Available

Authorization bypass in /mcp-connect/{id} allows any authenticated user to use any registered MCP server · Advisory · obot-platform/obot · GitHub

https://github.com/obot-platform/obot/security/advisories/GHSA-vw82-7fv8-r6gp
generic

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

https://www.vulncheck.com/advisories/obot-before-0.21.1-authorization-bypass-via-mcp-connect

Vendor Advisories for CVE-2026-101084(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/obot-platform/obot—0.21.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 58× in last 7d / 58× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-04 11:22 UTCGHSA enrichment
  2. 2026-10-04 07:26 UTCGHSA enrichment
  3. 2026-10-04 03:30 UTCGHSA enrichment
  4. 2026-10-03 23:34 UTCGHSA enrichment
  5. 2026-10-03 19:38 UTCGHSA enrichment
  6. 2026-10-03 15:43 UTCEG score recompute
  7. 2026-10-03 15:42 UTCGHSA enrichment
  8. 2026-10-03 14:25 UTCEPSS rescore
  9. 2026-10-03 11:41 UTCGHSA enrichment
  10. 2026-10-03 07:34 UTCGHSA enrichment
  11. 2026-10-03 03:36 UTCGHSA enrichment
  12. 2026-10-02 23:40 UTCGHSA enrichment
  13. 2026-10-02 19:44 UTCEG score recompute
  14. 2026-10-02 19:44 UTCGHSA enrichment
  15. 2026-10-02 15:47 UTCGHSA enrichment
  16. 2026-10-02 11:51 UTCGHSA enrichment
  17. 2026-10-02 07:54 UTCGHSA enrichment
  18. 2026-10-02 03:58 UTCGHSA enrichment
  19. 2026-10-02 00:02 UTCEG score recompute
  20. 2026-10-02 00:02 UTCGHSA enrichment
  21. 2026-10-01 19:49 UTCEPSS rescore
  22. 2026-10-01 19:14 UTCGHSA enrichment
  23. 2026-10-01 15:15 UTCGHSA enrichment
  24. 2026-10-01 11:19 UTCGHSA enrichment
  25. 2026-10-01 07:23 UTCGHSA enrichment
Show 33 more
  1. 2026-10-01 03:27 UTCGHSA enrichment
  2. 2026-09-30 23:31 UTCEG score recompute
  3. 2026-09-30 23:31 UTCGHSA enrichment
  4. 2026-09-30 22:26 UTCEG score recompute
  5. 2026-09-30 22:26 UTCGHSA enrichment
  6. 2026-09-30 20:13 UTCGHSA enrichment
  7. 2026-09-30 16:17 UTCEG score recompute
  8. 2026-09-30 16:17 UTCGHSA enrichment
  9. 2026-09-30 15:02 UTCEPSS rescore
  10. 2026-09-30 11:35 UTCGHSA enrichment
  11. 2026-09-30 07:39 UTCGHSA enrichment
  12. 2026-09-30 03:42 UTCGHSA enrichment
  13. 2026-09-29 23:46 UTCGHSA enrichment
  14. 2026-09-29 16:46 UTCEG score recompute
  15. 2026-09-29 16:46 UTCGHSA enrichment
  16. 2026-09-29 15:20 UTCEPSS rescore
  17. 2026-09-29 12:45 UTCGHSA enrichment
  18. 2026-09-29 08:49 UTCGHSA enrichment
  19. 2026-09-29 04:53 UTCGHSA enrichment
  20. 2026-09-29 00:57 UTCEG score recompute
  21. 2026-09-29 00:57 UTCGHSA enrichment
  22. 2026-09-28 21:02 UTCGHSA enrichment
  23. 2026-09-28 17:06 UTCEG score recompute
  24. 2026-09-28 17:06 UTCGHSA enrichment
  25. 2026-09-28 13:50 UTCEPSS rescore
  26. 2026-09-28 13:09 UTCGHSA enrichment
  27. 2026-09-28 09:13 UTCGHSA enrichment
  28. 2026-09-28 05:17 UTCGHSA enrichment
  29. 2026-09-28 01:21 UTCEG score recompute
  30. 2026-09-28 01:21 UTCGHSA enrichment
  31. 2026-09-27 21:25 UTCEG score recompute
  32. 2026-09-27 21:00 UTCEG score recompute
  33. 2026-09-27 21:00 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-101084?
CVE-2026-101084 is a critical vulnerability published on September 27, 2026. 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…
When was CVE-2026-101084 disclosed?
CVE-2026-101084 was first published on September 27, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-101084 actively exploited?
CVE-2026-101084 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-101084?
CVE-2026-101084 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-101084?
A fix for CVE-2026-101084 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-101084 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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