{"id":"EUVD-2026-111399","revision":"2577b1c7fadc47a6896e49c1b9a7642d","records":[{"revision":"2577b1c7fadc47a6896e49c1b9a7642d","observedAt":"2026-10-30T11:58:18.837+00:00","statement":{"source":"euvd","id":"EUVD-2026-111399","aliases":["CVE-2026-78661","GHSA-75pg-wvh3-34jr"],"title":"When coalescing adjacent text nodes in addText and fosterParent, appending to an existing TextNode's Data via string concatenation (n.Data += text) reallocated and copied the accumulated string on every token. Inputs containing many short t…","description":"When coalescing adjacent text nodes in addText and fosterParent, appending to an existing TextNode's Data via string concatenation (n.Data += text) reallocated and copied the accumulated string on every token. Inputs containing many short text runs separated by ignored end tags (such as \"a</x>\") caused O(n^2) allocations and byte copies. Accumulate coalesced text in per-node byte slices during parsing and materialize Data strings once at the end of parse.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[],"references":["https://go.dev/cl/849365","https://go.dev/issue/82224","https://groups.google.com/g/golang-announce/c/sqrs2vTx_Xs","https://pkg.go.dev/vuln/GO-2026-6860"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-111399","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 27, 2026, 9:38:56 PM","dateUpdated":"Oct 27, 2026, 9:38:56 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-111399","identifiers":["EUVD-2026-111399","CVE-2026-78661","GHSA-75pg-wvh3-34jr"]},"retained":false,"historicalAffected":[]}],"coverage":[]}