CVE-2026-44968: dbt mcp server Argument Injection

Description

dbt-mcp is a Model Context Protocol server for interacting with dbt. Prior to 1.17.1, _run_dbt_command() in src/dbt_mcp/dbt_cli/tools.py appended unsanitized node_selection and resource_type values to the dbt subprocess argument list, allowing an MCP client to inject dbt global flags such as --profiles-dir, --project-dir, and --target into subprocess.Popen even though shell=False prevents shell metacharacter injection. This issue is fixed in version 1.17.1.

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CVSS v3.1 Score

6.3

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0014

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-88 CWE-88

Affected Products

Vendor	Product	Versions
getdbt	dbt_mcp_server	< 1.17.1

References

Advisories & Patches

https://github.com/dbt-labs/dbt-mcp/commit/6534507b5e7a729758d5baece155602cad0bb22f https://github.com/dbt-labs/dbt-mcp/pull/752 https://github.com/dbt-labs/dbt-mcp/security/advisories/GHSA-xpww-f6pm-cfhq https://github.com/dbt-labs/dbt-mcp/security/advisories/GHSA-xpww-f6pm-cfhq

Exploits

https://github.com/dbt-labs/dbt-mcp/security/advisories/GHSA-xpww-f6pm-cfhq https://github.com/dbt-labs/dbt-mcp/security/advisories/GHSA-xpww-f6pm-cfhq

Other References

https://github.com/dbt-labs/dbt-mcp/releases/tag/v1.17.1

Frequently Asked Questions

What is CVE-2026-44968? +

dbt-mcp is a Model Context Protocol server for interacting with dbt. Prior to 1.17.1, _run_dbt_command() in src/dbt_mcp/dbt_cli/tools.py appended unsanitized node_selection and resource_type values to the dbt subprocess argument list, allowing an MCP client to inject dbt global flags such as --profiles-dir, --project-dir, and --target into subprocess.Popen even though shell=False prevents shell metacharacter injection. This issue is fixed in version 1.17.1. It has a CVSS v3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2026-44968? +

CVE-2026-44968 has a CVSS v3.1 score of 6.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0014, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-44968? +

CVE-2026-44968 affects products from getdbt, specifically: dbt_mcp_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-44968? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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