CVE-2026-21892

Description

Parsl is a Python parallel scripting library. A SQL Injection vulnerability exists in the parsl-visualize component of versions prior to 2026.01.05. The application constructs SQL queries using unsafe string formatting (Python % operator) with user-supplied input (workflow_id) directly from URL routes. This allows an unauthenticated attacker with access to the visualization dashboard to inject arbitrary SQL commands, potentially leading to data exfiltration or denial of service against the monitoring database. Version 2026.01.05 fixes the issue.

How to fix CVE-2026-21892

To remediate CVE-2026-21892, upgrade the affected package to a fixed version below.

• —upgrade to 2025.01.13+ds-1+deb13u1 or later
• —upgrade to 2025.01.13+ds-1+deb13u1 or later
• —upgrade to 2026.01.05 or later

Is CVE-2026-21892 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

• from 0, < 2025.01.13+ds-1+deb13u1
• from 0, < 2025.01.13+ds-1+deb13u1
• from 0, < 2026.01.05

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-21892
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-21892
• PATCHgithub.com/Parsl/parsl
• WEBgithub.com/Parsl/parsl/commit/013a928461e70f38a33258bd525a351ed828e974