xmldom: Quadratic-time parsing via the malformed-input recovery path — `parseElementStartPart` re-scan and `normalize()` adjacent-text merge
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| xmldom | xmldom | affected |
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| @xmldom | xmldom | affected |
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| Source | ID | Title |
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Github GHSA |
GHSA-93r5-fhx6-vmg9 | xmldom: Quadratic-time parsing via the malformed-input recovery path — `parseElementStartPart` re-scan and `normalize()` adjacent-text merge |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.590% probability within 30 days)
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ssvc
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| Weaknesses | CWE-1333 | |
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threat_severity
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cvssV3_1
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| First Time appeared |
Xmldom
Xmldom xmldom |
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| Vendors & Products |
Xmldom
Xmldom xmldom |
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| Description | 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. | |
| Title | xmldom: Quadratic-time parsing via the malformed-input recovery path — `parseElementStartPart` re-scan and `normalize()` adjacent-text merge | |
| Weaknesses | CWE-400 CWE-407 |
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| Metrics |
cvssV4_0
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