{"id":"CVE-2021-4238","state":"PUBLISHED","title":"Insufficient randomness in github.com/Masterminds/goutils","description":"Randomly-generated alphanumeric strings contain significantly less entropy than expected. The RandomAlphaNumeric and CryptoRandomAlphaNumeric functions always return strings containing at least one digit from 0 to 9. This significantly reduces the amount of entropy in short strings generated by these functions.","publishedAt":"2022-12-27T21:13:50.373Z","updatedAt":"2025-04-11T16:17:46.299Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","source":"CISA-ADP"},"assigner":"Go","products":["github.com/Masterminds/goutils github.com/Masterminds/goutils"],"affected":[{"vendor":"github.com/Masterminds/goutils","product":"github.com/Masterminds/goutils","packageName":"github.com/Masterminds/goutils","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.1.1","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"RandomAlphaNumeric"},{"name":"CryptoRandomAlphaNumeric"}]}],"references":["https://github.com/Masterminds/goutils/commit/869801f20f9f1e7ecdbdb6422049d8241270d5e1","https://pkg.go.dev/vuln/GO-2022-0411"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:23.890Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/4xxx/CVE-2021-4238.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-4238","state":"PUBLISHED","datePublished":"2022-12-27T21:13:50.373Z","dateUpdated":"2025-04-11T16:17:46.299Z","assignerShortName":"Go","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateReserved":"2022-07-29T19:56:49.058Z"},"containers":{"cna":{"title":"Insufficient randomness in github.com/Masterminds/goutils","descriptions":[{"lang":"en","value":"Randomly-generated alphanumeric strings contain significantly less entropy than expected. The RandomAlphaNumeric and CryptoRandomAlphaNumeric functions always return strings containing at least one digit from 0 to 9. This significantly reduces the amount of entropy in short strings generated by these functions."}],"affected":[{"vendor":"github.com/Masterminds/goutils","product":"github.com/Masterminds/goutils","packageName":"github.com/Masterminds/goutils","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.1.1","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"RandomAlphaNumeric"},{"name":"CryptoRandomAlphaNumeric"}]}],"references":[{"url":"https://github.com/Masterminds/goutils/commit/869801f20f9f1e7ecdbdb6422049d8241270d5e1"},{"url":"https://pkg.go.dev/vuln/GO-2022-0411"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE 330: Use of Insufficiently Random Values"}]}],"providerMetadata":{"shortName":"Go","orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateUpdated":"2023-06-12T19:04:16.468Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/Masterminds/goutils/commit/869801f20f9f1e7ecdbdb6422049d8241270d5e1","tags":["x_transferred"]},{"url":"https://pkg.go.dev/vuln/GO-2022-0411","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:23:10.165Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-11T16:17:07.316383Z","id":"CVE-2021-4238","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-11T16:17:46.299Z"}}]}}}