More information about this CVE will likely be available in a few days

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.

Related CPE's


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Weaknesses


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Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-27T22:18:05.930Z

18 hours ago

Last modified

2026-10-28T15:24:56.033Z

54 minutes ago