---
id: CVE-2026-21892
title: Parsl is a Python parallel scripting library
summary: >-
  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…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-89
vendor: uchicago
product: parsl
affected:
  - parsl < 2026.01.05
patched:
  - parsl 2026.01.05
published: '2026-01-08'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T22:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21892'
references:
  - url: >-
      https://github.com/Parsl/parsl/commit/013a928461e70f38a33258bd525a351ed828e974
    label: security-advisories@github.com
  - url: 'https://github.com/Parsl/parsl/security/advisories/GHSA-f2mf-q878-gh58'
    label: security-advisories@github.com
  - url: 'https://github.com/Parsl/parsl/security/advisories/GHSA-f2mf-q878-gh58'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21892'
  - url: 'https://github.com/Parsl/parsl'
tags:
  - nvd
  - osv
  - pip
epss: 0.00275
epssPercentile: 0.19844
aliases:
  - GHSA-f2mf-q878-gh58
  - PYSEC-2026-1759
ecosystem: pip
ingestedAt: '2026-07-08T18:25:48.623Z'
---

## Overview

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.

## Affected

- `parsl < 2026.01.05`

## Remediation

Upgrade past the affected range:

- `parsl 2026.01.05`

## Package advisory (CVE-2026-21892)

Affected packages:

- `parsl < 2026.01.05`

Patched in:

- `parsl 2026.01.05`

Source: https://osv.dev/vulnerability/GHSA-f2mf-q878-gh58