DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFE_FOR_XML regex. Attackers can include payloads like </noscript><img src=x onerror=alert(1)> in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-301cbbe347 advisory.

    This update contains upgrades to various npm packages used during the build to address CVEs, namely:

    - CVE-2025-69873 (ajv)
    - CVE-2026-0540 (DOMPurify)
    - CVE-2026-3449 (@tootallnate/once)
    - CVE-2026-4800 (lodash)
    - CVE-2026-6321 (fast-uri)
    - CVE-2026-41240 (DOMPurify)

    This is probably unimportant since these packages are used at build-time only.  They are not shipped with     python3-jupytext and therefore do not affect runtime.


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

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

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-793b55138d advisory.

    This update contains upgrades to various npm packages used during the build to address CVEs, namely:

    - CVE-2025-69873 (ajv)
    - CVE-2026-0540 (DOMPurify)
    - CVE-2026-3449 (@tootallnate/once)
    - CVE-2026-4800 (lodash)
    - CVE-2026-6321 (fast-uri)
    - CVE-2026-41240 (DOMPurify)

    This is probably unimportant since these packages are used at build-time only.  They are not shipped with     python3-jupytext and therefore do not affect runtime.


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

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

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-85b819b928 advisory.

    This update contains upgrades to various npm packages used during the build to address CVEs, namely:

    - CVE-2025-69873 (ajv)
    - CVE-2026-0540 (DOMPurify)
    - CVE-2026-3449 (@tootallnate/once)
    - CVE-2026-4800 (lodash)
    - CVE-2026-6321 (fast-uri)
    - CVE-2026-41240 (DOMPurify)

    This is probably unimportant since these packages are used at build-time only.  They are not shipped with     python3-jupytext and therefore do not affect runtime.


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

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

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

  - DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site
    scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing
    rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFE_FOR_XML regex. Attackers can
    include payloads like </noscript><img src=x onerror=alert(1)> in attribute values to execute JavaScript
    when sanitized output is placed inside these unprotected rawtext contexts. (CVE-2026-0540)

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

  - DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site     scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing     rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFE_FOR_XML regex. Attackers can     include payloads like </noscript><img src=x onerror=alert(1)> in attribute values to execute JavaScript     when sanitized output is placed inside these unprotected rawtext contexts. (CVE-2026-0540)

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

ID	Name	Product	Family	Severity
315095	Fedora 44 : python-jupytext (2026-301cbbe347)	Nessus	Fedora Local Security Checks	medium
315089	Fedora 42 : python-jupytext (2026-793b55138d)	Nessus	Fedora Local Security Checks	medium
315087	Fedora 43 : python-jupytext (2026-85b819b928)	Nessus	Fedora Local Security Checks	medium
438445	SCA: security update for dompurify (GHSA-v2wj-7wpq-c8vv)	Tenable Cloud Security	SCA Checks	medium
438445	SCA: security update for dompurify (GHSA-v2wj-7wpq-c8vv)	Tenable Self-Hosted Container Security	SCA Checks	medium
300629	Linux Distros Unpatched Vulnerability : CVE-2026-0540	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-0540

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium