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.

The remote Ubuntu 24.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-8505-1 advisory.

    It was discovered that Parsl incorrectly constructed SQL queries using unsafe string formatting with user-     supplied input in the parsl-visualize component. A remote attacker could possibly use this issue to     perform SQL injection attacks, leading to data exfiltration or a denial of service.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6099 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6099-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     January 14, 2026                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : python-parsl     CVE ID         : CVE-2026-21892

    Viral Vaghela discovered an SQL injection vulnerability in Parsl, a     parallel scripting library for Python.

    For the stable distribution (trixie), this problem has been fixed in     version 2025.01.13+ds-1+deb13u1.

    We recommend that you upgrade your python-parsl packages.

    For the detailed security status of python-parsl please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/python-parsl

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-21892)

Note that Nessus relies on the presence of the package as reported by the vendor.

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

  - 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. (CVE-2026-21892)

ID	Name	Product	Family	Type	Severity
325423	Ubuntu 24.04 LTS : Parsl vulnerability (USN-8505-1)	Nessus	Ubuntu Local Security Checks	Local	high
283689	Debian dsa-6099 : python-parsl-doc - security update	Nessus	Debian Local Security Checks	Local	high
282488	Linux Distros Unpatched Vulnerability : CVE-2026-21892	Nessus	Misc.	Local	high
436593	SCA: security update for parsl (GHSA-f2mf-q878-gh58)	Tenable Cloud Security	SCA Checks	Local	high
436593	SCA: security update for parsl (GHSA-f2mf-q878-gh58)	Tenable Self-Hosted Container Security	SCA Checks	Local	high

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CVE-2026-21892

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