{"id":"ALPINE-CVE-2019-16201","details":"WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.","modified":"2026-09-10T06:17:54.500512017Z","published":"2019-11-26T18:15:15.100Z","upstream":["CVE-2019-16201"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2019-16201"}],"affected":[{"package":{"name":"ruby","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.5.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-16201.json"}},{"package":{"name":"ruby","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/ruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.0"},{"fixed":"2.6.5-r0"}]}],"ecosystem_specific":{},"database_specific":{"sourc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