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Memory leak in the show-status CGI handler when no filter files are configured can lead to a system crash.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20210","reference_id":"","reference_type":"","scores":[{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72329","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72371","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72377","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72357","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72342","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72367","published_at":"2026-06-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20210"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20210","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20210"},{"reference_url":"https://security.gentoo.org/glsa/202107-16","reference_id":"GLSA-202107-16","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-16"},{"reference_url":"https://usn.ubuntu.com/4886-1/","reference_id":"USN-4886-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4886-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/429885?format=json","purl":"pkg:apk/alpine/privoxy@3.0.29-r0?arch=x86_64&distroversion=v3.23&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/privoxy@3.0.29-r0%3Farch=x86_64&distroversion=v3.23&reponame=main"}],"aliases":["CVE-2021-20210"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-j95h-cnan-1ya5"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/98619?format=json","vulnerability_id":"VCID-qb2v-vd58-pqee","summary":"A flaw was found in Privoxy in versions before 3.0.29. Memory leak when client tags are active can cause a system crash.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20211","reference_id":"","reference_type":"","scores":[{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72329","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72371","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72377","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72357","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72342","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72367","published_at":"2026-06-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20211"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20211","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20211"},{"reference_url":"https://security.gentoo.org/glsa/202107-16","reference_id":"GLSA-202107-16","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-16"},{"reference_url":"https://usn.ubuntu.com/4886-1/","reference_id":"USN-4886-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4886-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/429885?format=json","purl":"pkg:apk/alpine/privoxy@3.0.29-r0?arch=x86_64&distroversion=v3.23&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/privoxy@3.0.29-r0%3Farch=x86_64&distroversion=v3.23&reponame=main"}],"aliases":["CVE-2021-20211"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-qb2v-vd58-pqee"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/98620?format=json","vulnerability_id":"VCID-srtq-3ajb-5qdz","summary":"A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is skipped due to a pcre error leading to a system crash.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20212","reference_id":"","reference_type":"","scores":[{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72329","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72371","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72377","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72357","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72342","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72367","published_at":"2026-06-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20212"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20212","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20212"},{"reference_url":"https://security.gentoo.org/glsa/202107-16","reference_id":"GLSA-202107-16","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-16"},{"reference_url":"https://usn.ubuntu.com/4886-1/","reference_id":"USN-4886-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4886-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/429885?format=json","purl":"pkg:apk/alpine/privoxy@3.0.29-r0?arch=x86_64&distroversion=v3.23&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/privoxy@3.0.29-r0%3Farch=x86_64&distroversion=v3.23&reponame=main"}],"aliases":["CVE-2021-20212"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-srtq-3ajb-5qdz"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/98621?format=json","vulnerability_id":"VCID-vtug-2hhh-9qaj","summary":"A flaw was found in Privoxy in versions before 3.0.29. Dereference of a NULL-pointer that could result in a crash if accept-intercepted-requests was enabled, Privoxy failed to get the request destination from the Host header and a memory allocation failed.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20213","reference_id":"","reference_type":"","scores":[{"value":"0.00803","scoring_system":"epss","scoring_elements":"0.74461","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00803","scoring_system":"epss","scoring_elements":"0.74493","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00803","scoring_system":"epss","scoring_elements":"0.74499","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00803","scoring_system":"epss","scoring_elements":"0.74487","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00803","scoring_system":"epss","scoring_elements":"0.7447","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00803","scoring_system":"epss","scoring_elements":"0.74496","published_at":"2026-06-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20213"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20213","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20213"},{"reference_url":"https://security.gentoo.org/glsa/202107-16","reference_id":"GLSA-202107-16","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-16"},{"reference_url":"https://usn.ubuntu.com/4886-1/","reference_id":"USN-4886-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4886-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/429885?format=json","purl":"pkg:apk/alpine/privoxy@3.0.29-r0?arch=x86_64&distroversion=v3.23&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/privoxy@3.0.29-r0%3Farch=x86_64&distroversion=v3.23&reponame=main"}],"aliases":["CVE-2021-20213"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-vtug-2hhh-9qaj"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/98623?format=json","vulnerability_id":"VCID-xpb3-hwac-kuf1","summary":"A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the show-status CGI handler when memory allocations fail can lead to a system crash.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20215","reference_id":"","reference_type":"","scores":[{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72329","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72371","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72377","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72357","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72342","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72367","published_at":"2026-06-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20215"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20215","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20215"},{"reference_url":"https://security.gentoo.org/glsa/202107-16","reference_id":"GLSA-202107-16","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-16"},{"reference_url":"https://usn.ubuntu.com/4886-1/","reference_id":"USN-4886-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4886-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/429885?format=json","purl":"pkg:apk/alpine/privoxy@3.0.29-r0?arch=x86_64&distroversion=v3.23&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/privoxy@3.0.29-r0%3Farch=x86_64&distroversion=v3.23&reponame=main"}],"aliases":["CVE-2021-20215"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-xpb3-hwac-kuf1"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/98622?format=json","vulnerability_id":"VCID-yydj-c83s-a3bc","summary":"A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the client-tags CGI handler when client tags are configured and memory allocations fail can lead to a system crash.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20214","reference_id":"","reference_type":"","scores":[{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72329","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72371","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72377","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72357","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72342","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00697","scoring_system":"epss","scoring_elements":"0.72367","published_at":"2026-06-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-20214"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20214","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20214"},{"reference_url":"https://security.gentoo.org/glsa/202107-16","reference_id":"GLSA-202107-16","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-16"},{"reference_url":"https://usn.ubuntu.com/4886-1/","reference_id":"USN-4886-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4886-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/429885?format=json","purl":"pkg:apk/alpine/privoxy@3.0.29-r0?arch=x86_64&distroversion=v3.23&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/privoxy@3.0.29-r0%3Farch=x86_64&distroversion=v3.23&reponame=main"}],"aliases":["CVE-2021-20214"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-yydj-c83s-a3bc"}],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/privoxy@3.0.29-r0%3Farch=x86_64&distroversion=v3.23&reponame=main"}