EUVD-2026-111399

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" caused...

CVE-2026-78661

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" caused...

CVE-2026-78661 Avoid quadratic complexity when coalescing text nodes in html in golang.org/x/net

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" caused...

CVE-2026-78661

The golang.org/x/net package is vulnerable to a quadratic complexity issue when coalescing adjacent text nodes within the addText and fosterParent functions. The root cause is the use of string concatenation (n.Data += text) for appending data, which triggers repetitive reallocations and byte cop...