CVE-2026-34601

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-34601
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34601.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34601
Aliases
Downstream
Related
Published
2026-04-02T17:47:13.209Z
Modified
2026-07-23T03:56:10.751099337Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
xmldom: XML injection via unsafe CDATA serialization allows attacker-controlled markup insertion
Details

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. In xmldom versions 0.6.0 and prior and @xmldom/xmldom prior to versions 0.8.12 and 0.9.9, xmldom/xmldom allows attacker-controlled strings containing the CDATA terminator ]]> to be inserted into a CDATASection node. During serialization, XMLSerializer emitted the CDATA content verbatim without rejecting or safely splitting the terminator. As a result, data intended to remain text-only became active XML markup in the serialized output, enabling XML structure injection and downstream business-logic manipulation. This issue has been patched in xmldom version 0.6.0 and @xmldom/xmldom versions 0.8.12 and 0.9.9.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "@xmldom/xmldom >= 0.9.0, < 0.9.9"
                },
                {
                    "last_affected": "@xmldom/xmldom >= 0.9.0, < 0.9.9"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ],
    "cwe_ids": [
        "CWE-91"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34601.json"
}
References

Affected packages

Git / github.com/xmldom/xmldom

Affected ranges

Type
GIT
Repo
https://github.com/xmldom/xmldom
Events
Introduced
c80a161172cc4d8733583bf0cf59abfa589f6d9e
Fixed
2b852e836ab86dbbd6cbaf0537f584dd0b5ac184
Fixed
189cb78a83e81e1515880988a399e863a8be85ac
Fixed
7ffb16bce1170c7314151379531147637ab772a1
Database specific 
{
    "extracted_events": [
        {
            "introduced": "xmldom <= 0.6.0"
        },
        {
            "last_affected": "xmldom <= 0.6.0"
        },
        {
            "introduced": "@xmldom/xmldom < 0.8.12"
        },
        {
            "last_affected": "@xmldom/xmldom < 0.8.12"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.6.0
0.7.0
0.7.0+scoped
0.7.0+unscoped
0.7.1
0.7.2
0.7.3
0.8.0
0.8.1
0.8.10
0.8.11
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
0.9.0-beta.1
0.9.0-beta.10
0.9.0-beta.11
0.9.0-beta.2
0.9.0-beta.3
0.9.0-beta.4
0.9.0-beta.5
0.9.0-beta.6
0.9.0-beta.7
0.9.0-beta.8
0.9.0-beta.9
0.9.1
0.9.2
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
0.9.8
@xmldom/xmldom < 0.*
@xmldom/xmldom < 0.8.12
v0.*
v0.7.0
xmldom <= 0.*
xmldom <= 0.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34601.json"