CVE-2026-83614

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Source
https://cve.org/CVERecord?id=CVE-2026-83614
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-83614.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-83614
Aliases
  • GHSA-93r5-fhx6-vmg9
Downstream
Published
2026-09-01T14:41:42.582Z
Modified
2026-09-03T03:48:17.067915921Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
xmldom: Quadratic-time parsing via the malformed-input recovery path — `parseElementStartPart` re-scan and `normalize()` adjacent-text merge
Details

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom versions 0.3.0 through 0.6.0, two independent quadratic paths can cause denial of service. In lib/sax.js, parseElementStartPart repeatedly rescans a malformed tag name to the next > during single-character recovery; in lib/dom.js, normalize() repeatedly removes and appends adjacent text nodes, causing quadratic reindexing and string rebuilding. The first path is reachable through default DOMParser.parseFromString() processing, while the second is also reachable through a direct normalize() call on a programmatically constructed DOM, and endDocument invokes that normalization after parsing. This issue is fixed in @xmldom/xmldom versions 0.8.15 and 0.9.12; no fixed version is available for xmldom.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/83xxx/CVE-2026-83614.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-400",
        "CWE-407"
    ]
}
References

Affected packages

Git / github.com/xmldom/xmldom

Affected ranges

Type
GIT
Repo
https://github.com/xmldom/xmldom
Events
Introduced
69d754508a910919ddc108b47d18327f96a079f2
Last affected
c80a161172cc4d8733583bf0cf59abfa589f6d9e
Introduced
c568938641cc1f121cef5b4df80fcfda1e489b6e
Fixed
b5b8fb5b579ae1183b34e74b3bc39d7eb50a226a
Introduced
8c7c7afe89027641aa59c101d20eefedc0f54c6f
Fixed
0af8cf829d8a92bbac612903422c6947f5458f06
Database specific
Show details 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0.3.0"
        },
        {
            "last_affected": "0.6.0"
        },
        {
            "introduced": "0.7.0"
        },
        {
            "fixed": "0.8.15"
        },
        {
            "introduced": "0.9.0"
        },
        {
            "fixed": "0.9.12"
        }
    ]
}

Affected versions

0.*
0.3.0
0.4.0
0.5.0
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
0.8.12
0.8.13
0.8.14
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
0.9.1
0.9.10
0.9.11
0.9.2
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
0.9.8
0.9.9
v0.*
v0.7.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-83614.json"