CVE-2026-78661
Severity not reportedData quality: partial.
Some fields were not provided by the source.
When coalescing adjacent text nodes in addText and fosterParent, appending to an existing TextNode's Data via string concatenation (n.Data += text) reallocated…
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 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.
CVSS
—
Not reported by the source
Timeline (UTC)
Published: 2026-10-27 22:18
Modified: 2026-10-28 15:24
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-28 15:27 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://go.dev/cl/849365 security@golang.org
- https://go.dev/issue/82224 security@golang.org
- https://groups.google.com/g/golang-announce/c/sqrs2vTx_Xs security@golang.org
- https://pkg.go.dev/vuln/GO-2026-6860 security@golang.org
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 15:27 UTC · record ↗