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Redirection to Untrusted Site ('Open Redirect') vulnerability in FORM authentication feature Apache Tomcat.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.0.12, from 9.0.0-M1 through 9.0.79 and from 8.5.0 through 8.5.92.\nOlder, EOL versions may also be affected.\n\n\nThe vulnerability is limited to the ROOT (default) web application.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-41080.json","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-41080.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-41080","reference_id":"","reference_type":"","scores":[{"value":"0.11586","scoring_system":"epss","scoring_elements":"0.93661","published_at":"2026-04-16T12:55:00Z"},{"value":"0.11586","scoring_system":"epss","scoring_elements":"0.93643","published_at":"2026-04-13T12:55:00Z"},{"value":"0.11586","scoring_system":"epss","scoring_elements":"0.93642","published_at":"2026-04-12T12:55:00Z"},{"value":"0.11586","scoring_system":"epss","scoring_elements":"0.93637","published_at":"2026-04-09T12:55:00Z"},{"value":"0.11586","scoring_system":"epss","scoring_elements":"0.93635","published_at":"2026-04-08T12:55:00Z"},{"value":"0.11586","scoring_system":"epss","scoring_elements":"0.93626","published_at":"2026-04-07T12:55:00Z"},{"value":"0.13662","scoring_system":"epss","scoring_elements":"0.94234","published_at":"2026-04-04T12:55:00Z"},{"value":"0.13662","scoring_system":"epss","scoring_elements":"0.94222","published_at":"2026-04-02T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-41080"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://github.com/apache/tomcat","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/tomcat"},{"reference_url":"https://github.com/apache/tomcat/commit/4998ad745b67edeadefe541c94ed029b53933d3b","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/tomcat/commit/4998ad745b67edeadefe541c94ed029b53933d3b"},{"reference_url":"https://github.com/apache/tomcat/commit/77c0ce2d169efa248b64b992e547aad549ec906b","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/tomcat/commit/77c0ce2d169efa248b64b992e547aad549ec906b"},{"reference_url":"https://github.com/apache/tomcat/commit/bb4624a9f3e69d495182ebfa68d7983076407a27","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/tomcat/commit/bb4624a9f3e69d495182ebfa68d7983076407a27"},{"reference_url":"https://github.com/apache/tomcat/commit/e3703c9abb8fe0d5602f6ba8a8f11d4b6940815a","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/tomcat/commit/e3703c9abb8fe0d5602f6ba8a8f11d4b6940815a"},{"reference_url":"https://lists.apache.org/thread/71wvwprtx2j2m54fovq9zr7gbm2wow2f","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-27T18:42:58Z/"}],"url":"https://lists.apache.org/thread/71wvwprtx2j2m54fovq9zr7gbm2wow2f"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"},{"reference_url":"https://security.netapp.com/advisory/ntap-20230921-0006","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual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Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could \ncause Tomcat to skip some parts of the recycling process leading to \ninformation leaking from the current request/response to the next.\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the 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Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the 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