CVE-2026-77366

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Source
https://cve.org/CVERecord?id=CVE-2026-77366
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77366.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-77366
Aliases
  • GHSA-84c9-qqpq-2pq5
Published
2026-10-12T17:54:31Z
Modified
2026-10-15T02:30:50Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
obsidian-tc tokens can access arbitrary configured vaults
Details

obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, tool dispatch does not compare the caller-controlled input.vault value with the vault bound to the caller, the JSON Web Token (JWT) has no vault claim, and the folder access-control list is shared globally. Any valid token can therefore select another configured vault and read, write, or delete its contents through affected tools. Version 1.3.1 fixes the vulnerability by binding tokens and request context to a vault and rejecting mismatched input.vault values before scope checks.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-639",
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77366.json"
}
References

Affected packages

Git / github.com/the-40-thieves/obsidian-tc

Affected ranges

Type
GIT
Repo
https://github.com/the-40-thieves/obsidian-tc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
38b4992e87dc2715564236e1a42d005ab05a0194
Fixed
3956ed5173ebde7864c7d576c259e9e747b11d76
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.3.1"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.0.1
v1.0.2
v1.2.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77366.json"