{"id":"CVE-2020-8449","details":"An issue was discovered in Squid before 4.10. Due to incorrect input validation, it can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters.","modified":"2026-03-20T11:37:50.228737Z","published":"2020-02-04T20:15:14.697Z","related":["ALSA-2020:4743","MGASA-2020-0106","SUSE-SU-2020:0487-1","SUSE-SU-2020:0493-1","SUSE-SU-2020:0661-1","SUSE-SU-2020:14460-1","openSUSE-SU-2020:0307-1","openSUSE-SU-2020:0606-1","openSUSE-SU-2024:11403-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6W2IQ7QV2OGREFFUBNVZIDD3RJBDE4R/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TSU6SPANL27AGK5PCGBJOKG4LUWA555J/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-34"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210304-0002/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4682"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4289-1/"},{"type":"FIX","url":"http://www.squid-cache.org/Advisories/SQUID-2020_1.txt"},{"type":"FIX","url":"http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-8e657e835965c3a011375feaa0359921c5b3e2dd.patch"},{"type":"FIX","url":"http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_1.patch"},{"type":"FIX","url":"http://www.squid-cache.org/Versions/v4/changesets/squid-4-b3a0719affab099c684f1cd62b79ab02816fa962.patch"},{"type":"FIX","url":"http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patch"},{"type":"FIX","url":"http://www.squid-cache.org/Versions/v4/changesets/squid-4-d8e4715992d0e530871519549add5519cbac0598.patch"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/squid-cache/squid","events":[{"introduced":"0"},{"fixed":"91d32285db62332648d92eabd48c5d8e59b475d2"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"4.10"}]}}],"versions":["BASIC_TPROXY4","BumpSslServerFirst.take01","BumpSslServerFirst.take02","BumpSslServerFirst.take03","BumpSslServerFirst.take04","BumpSslServerFirst.take05","BumpSslServerFirst.take06","BumpSslServerFirst.take07","BumpSslServerFirst.take08","BumpSslServerFirst.take09","BumpSslServerFirst.take10","HISTORIC_RELEASES","SQUID_3_0_PRE1","SQUID_3_0_PRE2","SQUID_3_0_PRE3","SQUID_3_0_PRE4","SQUID_3_0_PRE5","SQUID_3_0_PRE6","SQUID_3_0_PRE7","SQUID_3_0_RC1","SQUID_4_0_1","SQUID_4_0_10","SQUID_4_0_11","SQUID_4_0_12","SQUID_4_0_13","SQUID_4_0_14","SQUID_4_0_15","SQUID_4_0_16","SQUID_4_0_17","SQUID_4_0_18","SQUID_4_0_19","SQUID_4_0_2","SQUID_4_0_20","SQUID_4_0_21","SQUID_4_0_22","SQUID_4_0_23","SQUID_4_0_24","SQUID_4_0_25","SQUID_4_0_3","SQUID_4_0_4","SQUID_4_0_5","SQUID_4_0_6","SQUID_4_0_7","SQUID_4_0_8","SQUID_4_0_9","SQUID_4_1","SQUID_4_2","SQUID_4_3","SQUID_4_4","SQUID_4_5","SQUID_4_6","SQUID_4_7","SQUID_4_8","SQUID_4_9","for-libecap-v0p1","merge-candidate-3-v1","merge-candidate-3-v2","sourceformat-review-1","take00","take01","take02","take03","take04","take06","take07","take08","take09","take1","take2"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"19.10"}]},{"events":[{"introduced":"0"},{"last_affected":"15.1"}]},{"events":[{"introduced":"0"},{"last_affected":"30"}]},{"events":[{"introduced":"0"},{"last_affected":"31"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-8449.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}