Detections
Analytics

SCA: security update for dbt-mcp (GHSA-jr33-mw75-7j8f)

medium Tenable Self-Hosted Container Security Plugin ID 443709

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - dbt-mcp is a Model Context Protocol server for interacting with dbt. Prior to 1.20.0, the local OAuth
 helper in src/dbt_mcp/oauth/fastapi_app.py exposes GET /dbt_platform_context without authentication or
 Host validation after a user completes the dbt Platform OAuth flow. The endpoint returns the full
 DbtPlatformContext, including access_token and refresh_token values persisted by the context manager, to
 any process that can reach 127.0.0.1:6785. The absence of TrustedHostMiddleware allows a remote attacker
 to use DNS rebinding against a victim's browser because the helper accepts arbitrary Host headers, while a
 co-located process can request the endpoint directly. The stolen tokens provide immediate dbt Platform API
 access as the victim and persistent access through the refresh token, allowing access to or modification
 of projects, jobs, environment secrets, and related account data. This issue is fixed in version 1.20.0.
 (CVE-2026-55837)

Solution

Update the dbt-mcp library and its related packages to version 1.20.0 or later.

See Also

https://github.com/advisories/GHSA-jr33-mw75-7j8f

Plugin Details

Severity: Medium

ID: 443709

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/20/2026

Updated: 9/15/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.61

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-55837

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-55837