{"id":"CVE-2020-25097","details":"An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.","modified":"2026-04-16T04:39:06.899774255Z","published":"2021-03-19T05:15:12.480Z","related":["ALSA-2021:1979","GHSA-jvf6-h9gj-pmj6","SUSE-SU-2021:1838-1","SUSE-SU-2021:1961-1","SUSE-SU-2022:14914-1","SUSE-SU-2022:2392-1","openSUSE-SU-2021:0879-1","openSUSE-SU-2021:1961-1","openSUSE-SU-2024:11403-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJMDRVV677AJL4BZAOLCT5LMFCGBZTC2/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FBXFWKIGXPERDVQXG556LLPUOCMQGERC/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3RYBDMJCPYGOSURWDR3WJTE474UFT77/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-14"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210727-0010/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4873"},{"type":"FIX","url":"http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_11.patch"},{"type":"FIX","url":"http://www.squid-cache.org/Versions/v5/changesets/SQUID-2020_11.patch"},{"type":"FIX","url":"https://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/squid-cache/squid","events":[{"introduced":"0"},{"fixed":"fa47a3bc4d382e28e7235d08750401b910e4b13a"},{"introduced":"8a511d5e05aa17b47c7566839fd9c524512489d3"},{"fixed":"a115b4597afa7d6d9efa7cc83d001a1f7bcc17e2"},{"introduced":"0"},{"last_affected":"a3f681bfbc39768cecd7d12271e99f32fe4425e3"},{"introduced":"0"},{"last_affected":"0f67e2aac4a27d0c5ffbfa1dcd89d8abbc7175a7"}],"database_specific":{"versions":[{"introduced":"2.0"},{"fixed":"4.14"},{"introduced":"5.0.1"},{"fixed":"5.0.5"},{"introduced":"0"},{"last_affected":"32"},{"introduced":"0"},{"last_affected":"33"}]}}],"versions":["HISTORIC_RELEASES","M-staged-PR161","M-staged-PR164","M-staged-PR170","M-staged-PR176","M-staged-PR179","M-staged-PR181","M-staged-PR182","M-staged-PR186","M-staged-PR189","M-staged-PR193","M-staged-PR195","M-staged-PR196","M-staged-PR198","M-staged-PR199","M-staged-PR200","M-staged-PR202","M-staged-PR206","M-staged-PR208","M-staged-PR209","M-staged-PR210","M-staged-PR218","M-staged-PR220","M-staged-PR221","M-staged-PR225","M-staged-PR227","M-staged-PR229","M-staged-PR230","M-staged-PR235","M-staged-PR237","M-staged-PR238","M-staged-PR239","M-staged-PR241","M-staged-PR242","M-staged-PR252","M-staged-PR255","M-staged-PR258","M-staged-PR264","M-staged-PR266","M-staged-PR267","M-staged-PR268","M-staged-PR274","M-staged-PR276","M-staged-PR293","M-staged-PR294","M-staged-PR295","M-staged-PR299","M-staged-PR306","M-staged-PR314","M-staged-PR324","M-staged-PR330","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_3_5_27","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_10","SQUID_4_11","SQUID_4_12","SQUID_4_13","SQUID_4_2","SQUID_4_3","SQUID_4_4","SQUID_4_5","SQUID_4_6","SQUID_4_7","SQUID_4_8","SQUID_4_9","SQUID_5_0_1","SQUID_5_0_2","SQUID_5_0_3","SQUID_5_0_4","take00"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25097.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"34"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"}]}