CVE-2026-77363

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Source

https://cve.org/CVERecord?id=CVE-2026-77363

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77363.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-77363

Aliases

GHSA-pqh8-4pj7-32xx

Published

2026-10-12T17:45:57Z

Modified

2026-10-13T02:46:55Z

Severity

8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator

Summary

obsidian-tc Streamable HTTP transport permits cross-origin loopback vault access

Details

obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, the Streamable HTTP transport does not validate the Host or Origin header or enable DNS-rebinding protection. When the documented loopback configuration uses auth.mode set to none, a malicious web page can send requests to the local MCP endpoint and receive unrestricted vault access through the http-local caller. Version 1.3.1 fixes the vulnerability by enabling host, origin, and DNS-rebinding validation.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-1385",
        "CWE-346"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77363.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

Fixed

3956ed5173ebde7864c7d576c259e9e747b11d76

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.3.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

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-2026-77363.json"