CVE-2026-83612
- Source
- https://cve.org/CVERecord?id=CVE-2026-83612
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-83612.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-83612
- Aliases
- Downstream
DEBIAN (1)
ROOT (1)
UBUNTU (1)
- Published
- 2026-09-01T14:36:23Z
- Modified
- 2026-10-28T02:30:28Z
- 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: HTML raw-text closing-tag case mismatch causes output amplification
- Details
-
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.0-beta.1 until 0.9.12, HTML-mode parsing through DOMParser.parseFromString() mishandles a mixed-case closing tag for the script, style, textarea, or title raw-text elements. parseHtmlSpecialContent, selected by isHTMLRawTextElement or isHTMLEscapableRawTextElement, uses a case-sensitive indexOf() and then calls substring() with a missing-close result of negative one, causing unstable parser progression and quadratic output amplification. A small untrusted text/html document can consequently consume disproportionate CPU and memory when parsed and serialized. This issue is fixed in @xmldom/xmldom version 0.9.12.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-178", "CWE-400" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/83xxx/CVE-2026-83612.json" }- References
-
- https://github.com/xmldom/xmldom/releases/tag/0.9.12
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/83xxx/CVE-2026-83612.json
- https://github.com/xmldom/xmldom/security/advisories/GHSA-6mj3-qw4j-hgrw
- https://nvd.nist.gov/vuln/detail/CVE-2026-83612
- https://github.com/xmldom/xmldom/commit/7ced40c06c28d151e996a97045018c3559ae4707
- https://github.com/xmldom/xmldom/pull/1071
Affected packages
Git / github.com/xmldom/xmldom
Affected ranges
- Type
- GIT
- Repo
- https://github.com/xmldom/xmldom
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0.9.0-beta.1" }, { "fixed": "0.9.12" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "7ced40c06c28d151e996a97045018c3559ae4707" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "0.9.12", "range": [ { "fixed": "0af8cf829d8a92bbac612903422c6947f5458f06" } ], "source": "REFERENCES_TAG" } ] }