DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers on descendant elements that execute after sanitization completes, even though the returned root appears clean.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0947 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-75838:
    DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where     element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers     on descendant elements that execute after sanitization completes, even though the returned root appears     clean.

Tenable has extracted the preceding description block directly from the Tencent Linux 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 version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0946 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-75838:
    DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where     element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers     on descendant elements that execute after sanitization completes, even though the returned root appears     clean.

Tenable has extracted the preceding description block directly from the Tencent Linux 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.

  - DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where     element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers     on descendant elements that execute after sanitization completes, even though the returned root appears     clean. (CVE-2026-75838)

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

ID	Name	Product	Family	Type	Severity
342216	TencentOS Server 4: grafana (TSSA-2026:0947)	Nessus	Tencent Local Security Checks	Local	medium
342177	TencentOS Server 4: grafana-pcp (TSSA-2026:0946)	Nessus	Tencent Local Security Checks	Local	medium
338027	Linux Distros Unpatched Vulnerability : CVE-2026-75838	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-75838

medium

Tenable Plugins

medium

medium

medium