CVE-2026-78661 Affecting calico-3.29-node package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-CALICO329NODE-21788344
- published29 Oct 2026
- disclosed27 Oct 2026
Introduced: 27 Oct 2026
NewCVE-2026-78661 (opens in a new tab)How to fix?
There is no fixed version for Minimos:latest calico-3.29-node.
NVD Description
Note: Versions mentioned in the description apply only to the upstream calico-3.29-node package and not the calico-3.29-node package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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.
References
- https://www.cve.org/CVERecord?id=CVE-2026-78661
- https://github.com/advisories/GHSA-75pg-wvh3-34jr
- https://osv.dev/vulnerability/MINI-28x6-w8mw-fgcv
- https://osv.dev/vulnerability/CVE-2026-78661
- 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