{"id":"CVE-2023-46233","title":"crypto-js is a JavaScript library of crypto standards","summary":"crypto-js is a JavaScript library of crypto standards. Prior to version 4.2.0, crypto-js PBKDF2 is 1,000 times weaker than originally specified in 1993, and at least 1,300,000 times weaker than current industry standard. This is because …","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-328","CWE-916","CWE-327"],"vendor":"crypto-js_project","product":"crypto-js","affected":["crypto-js < 4.2.0"],"patched":["crypto-js 4.2.0"],"published":"2023-10-25","updated":"2026-06-23","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-46233","references":[{"url":"https://github.com/brix/crypto-js/commit/421dd538b2d34e7c24a5b72cc64dc2b9167db40a","label":"security-advisories@github.com"},{"url":"https://github.com/brix/crypto-js/security/advisories/GHSA-xwcq-pm8m-c4vf","label":"security-advisories@github.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00025.html","label":"security-advisories@github.com"},{"url":"https://github.com/brix/crypto-js/commit/421dd538b2d34e7c24a5b72cc64dc2b9167db40a","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/brix/crypto-js/security/advisories/GHSA-xwcq-pm8m-c4vf","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00025.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00635,"epssPercentile":0.49015,"ingestedAt":"2026-06-29T13:24:33.919Z","slug":"CVE-2023-46233","body":"## Overview\n\ncrypto-js is a JavaScript library of crypto standards. Prior to version 4.2.0, crypto-js PBKDF2 is 1,000 times weaker than originally specified in 1993, and at least 1,300,000 times weaker than current industry standard. This is because it both defaults to SHA1, a cryptographic hash algorithm considered insecure since at least 2005, and defaults to one single iteration, a 'strength' or 'difficulty' value specified at 1,000 when specified in 1993. PBKDF2 relies on iteration count as a countermeasure to preimage and collision attacks. If used to protect passwords, the impact is high. If used to generate signatures, the impact is high. Version 4.2.0 contains a patch for this issue. As a workaround, configure crypto-js to use SHA256 with at least 250,000 iterations.\n\n## Affected\n\n- `crypto-js < 4.2.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `crypto-js 4.2.0`","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}