CVE-2026-65903

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Source
https://cve.org/CVERecord?id=CVE-2026-65903
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65903.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-65903
Aliases
Downstream
Related
Published
2026-07-23T13:16:21.187Z
Modified
2026-07-25T04:14:50.533799022Z
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 3.4.0 ADD_TAGS Function Bypasses FORBID_TAGS
Details

DOMPurify before 3.4.0 contains a logic error in the ADDTAGS function where short-circuit evaluation allows forbidden tags to bypass FORBIDTAGS restrictions. Attackers can craft input containing tags listed in FORBIDTAGS that are also added via ADDTAGS function, causing them to be retained in sanitized output.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65903.json",
    "cwe_ids": [
        "CWE-697"
    ],
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/cure53/dompurify

Affected ranges

Type
GIT
Repo
https://github.com/cure53/dompurify
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5b16e0b892e82b1779d62b9928b43c4c4ff290b9
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.4.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

0.*
0.1
0.3
0.4
0.4.2
0.4.3
0.4.4
0.4.5
0.6.0
0.6.1
0.6.2
0.6.3
0.6.4
0.6.5
0.6.6
0.6.7
0.7.0
0.7.1
0.7.2
0.7.3
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.8.6
0.8.7
0.8.8
0.8.9
0.9.0
1.*
1.0.0
1.0.1
1.0.10
1.0.11
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.0.8
1.0.9
2.*
2.0.0
2.0.1
2.0.10
2.0.11
2.0.12
2.0.13
2.0.14
2.0.15
2.0.16
2.0.17
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.8
2.0.9
2.1.0
2.1.1
2.2.0
2.2.2
2.2.3
2.2.4
2.2.6
2.2.7
2.2.8
2.2.9
2.3.0
2.3.1
2.3.10
2.3.11
2.3.12
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.8
2.3.9
2.4.0
2.4.1
2.4.2
2.4.3
3.*
3.0.4
3.1.3
3.2.3
3.3.3
v0.*
v0.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65903.json"