{"id":"CVE-2021-22876","details":"curl 7.1.1 to and including 7.75.0 is vulnerable to an \"Exposure of Private Personal Information to an Unauthorized Actor\" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.","aliases":["CURL-CVE-2021-22876"],"modified":"2026-05-18T05:53:30.572816713Z","published":"2021-04-01T18:15:12.823Z","related":["ALSA-2021:4511","SUSE-SU-2021:1006-1","SUSE-SU-2021:1396-1","SUSE-SU-2021:14707-1","SUSE-SU-2021:1786-1","SUSE-SU-2021:1809-1","openSUSE-SU-2021:0510-1","openSUSE-SU-2024:10582-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"9.0"}],"vendor_product":"debian:debian_linux","source":"CPE_FIELD","cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]},{"cpes":["cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"],"vendor_product":"fedoraproject:fedora","source":"CPE_FIELD","extracted_events":[{"last_affected":"32"},{"last_affected":"33"},{"last_affected":"34"}]},{"cpes":["cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.3.0:*:*:*:*:*:*:*"],"vendor_product":"oracle:communications_billing_and_revenue_management","source":"CPE_FIELD","extracted_events":[{"last_affected":"12.0.0.3.0"}]},{"cpes":["cpe:2.3:a:oracle:essbase:21.2:*:*:*:*:*:*:*"],"vendor_product":"oracle:essbase","source":"CPE_FIELD","extracted_events":[{"last_affected":"21.2"}]},{"cpes":["cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*"],"vendor_product":"siemens:sinec_infrastructure_network_services","source":"CPE_FIELD","extracted_events":[{"fixed":"1.0.1.1"}]},{"cpes":["cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*","cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*"],"vendor_product":"splunk:universal_forwarder","source":"CPE_FIELD","extracted_events":[{"introduced":"8.2.0"},{"fixed":"8.2.12"},{"introduced":"9.0.0"},{"fixed":"9.0.6"},{"last_affected":"9.1.0"}]}]},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00019.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ZC5BMIOKLBQJSFCHEDN2G2C2SH274BP/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITVWPVGLFISU5BJC2BXBRYSDXTXE2YGC/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQUIOYX2KUU6FIUZVB5WWZ6JHSSYSQWJ/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-36"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210521-0007/"},{"type":"ADVISORY","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"FIX","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"},{"type":"FIX","url":"https://curl.se/docs/CVE-2021-22876.html"},{"type":"FIX","url":"https://hackerone.com/reports/1101882"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"8d2c24265d6d8ed74e3d2dc646cb1c3d20f290f3"},{"last_affected":"2f33be817cbce6ad7a36f27dd7ada9219f13584c"}],"database_specific":{"extracted_events":[{"introduced":"7.1.1"},{"last_affected":"7.75.0"}],"cpe":"cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*","source":"CPE_FIELD"}}],"versions":["curl-7_75_0","curl-7_74_0","curl-7_73_0","curl-7_72_0","curl-7_71_1","curl-7_71_0","curl-7_70_0","curl-7_69_1","curl-7_69_0","curl-7_68_0","curl-7_67_0","curl-7_66_0","curl-7_65_3","curl-7_65_2","curl-7_65_1","curl-7_65_0","curl-7_64_1","curl-7_64_0","curl-7_63_0","curl-7_62_0","curl-7_61_1","curl-7_61_0","curl-7_60_0","curl-7_59_0","curl-7_58_0","curl-7_57_0","curl-7_56_1","curl-7_56_0","curl-7_55_1","curl-7_55_0","curl-7_54_1","curl-7_54_0","curl-7_53_1","curl-7_53_0","curl-7_52_1","curl-7_52_0","curl-7_51_0","curl-7_50_3","curl-7_50_2","curl-7_50_1","curl-7_50_0","curl-7_49_1","curl-7_49_0","curl-7_48_0","curl-7_47_1","curl-7_47_0","curl-7_46_0","curl-7_45_0","curl-7_44_0","curl-7_43_0","curl-7_42_0","curl-7_41_0","curl-7_40_0","curl-7_39_0","curl-7_38_0","curl-7_37_1","curl-7_37_0","curl-7_36_0","curl-7_35_0","curl-7_34_0","curl-7_33_0","curl-7_32_0","curl-7_31_0","curl-7_30_0","curl-7_29_0","curl-7_28_1","curl-7_28_0","curl-7_27_0","curl-7_26_0","curl-7_25_0","curl-7_23_1","curl-7_23_0","curl-7_22_0","curl-7_21_7","curl-7_21_6","curl-7_21_5","curl-7_21_4","curl-7_21_3","curl-7_21_2","curl-7_21_1","curl-7_21_0","curl-7_20_1","curl-7_20_0","curl-7_19_7","curl-7_19_6","curl-7_19_5","curl-7_19_4","curl-7_19_3","curl-7_19_2","curl-7_19_1","curl-7_19_0","curl-7_18_2","curl-7_18_1","curl-7_18_0","curl-7_17_1","curl-7_17_0","curl-7_17_0-preldapfix","curl-7_16_4","curl-7_16_3","curl-7_16_2","curl-7_16_1","curl-7_16_0","curl-7_15_6-prepipeline","curl-7_15_5","curl-7_15_4","curl-7_15_3","curl-7_15_2","curl-7_15_1","curl-7_15_0","curl-7_14_1","curl-7_14_0","curl-7_13_2","curl-7_13_1","before_ftp_statemachine","curl-7_13_0","curl-7_12_3","curl-7_12_2","curl-7_12_1","curl-7_12_0","curl-7_11_2","curl-7_11_1","curl-7_11_0","curl-7_10_8","curl-7_10_7","curl-7_10_6","curl-7_10_5","cu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