CVE-2026-26021
CVE-2026-26021 · Prototype pollution in set-in
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set-in provides the set value of nested associative structure given array of keys. A prototype pollution vulnerability exists in the the npm package set-in (>=2.0.1, < 2.0.5). Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using Array.prototype. This has been fixed in version 2.0.5.
CVSS 9.4 · Critique · EPSS 0,6% · Correctif disponible
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Pile logicielle: node