CVE-2026-65899

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Source
https://cve.org/CVERecord?id=CVE-2026-65899
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65899.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-65899
Aliases
Downstream
Related
Published
2026-07-23T13:16:18.389Z
Modified
2026-07-25T04:14:50.543706756Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
DOMPurify before 3.4.9 Trusted Types Policy State Contamination
Details

DOMPurify 3.0.0 before 3.4.9 does not reset the retained Trusted Types policy when clearConfig() is called, so a DOMPurify instance reused across trust boundaries stays bound to a previously supplied TRUSTEDTYPESPOLICY. A later caller that requests RETURNTRUSTEDTYPE output receives a TrustedHTML object created by the old (potentially unsafe) policy rather than a clean default, which can lead to script execution at a Trusted Types sink. Passing TRUSTEDTYPESPOLICY: null on the later call also does not clear the retained policy.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-693"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65899.json"
}
References

Affected packages

Git / github.com/cure53/dompurify

Affected ranges

Type
GIT
Repo
https://github.com/cure53/dompurify
Events
Introduced
5dcf2a012c70ea8b65c0ecff7de86a61d7d98181
Fixed
52102472d46035857c52df19e44285f8a1e102fc
Fixed
825e617753ac1169306a542d3174a77f717a0cf6
Database specific 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.4.9"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65899.json"