GO-2026-6860
Avoid quadratic complexity when coalescing text nodes in html in golang.org/x/net
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-78661
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.
Paquets affectés
| Paquet | Versions |
|---|---|
| Go · golang.org/x/net | introduced 0, fixed 0.62.0 |
Références
- https://go.dev/cl/849365 FIX
- https://go.dev/issue/82224 REPORT
- https://groups.google.com/g/golang-announce/c/sqrs2vTx_Xs WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |