{"document":{"aggregate_severity":{"namespace":"https://access.redhat.com/security/updates/classification/","text":"Moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright © Red Hat, Inc. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"legal_disclaimer","text":"This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.","title":"Terms of Use"}],"publisher":{"category":"vendor","contact_details":"https://access.redhat.com/security/team/contact/","issuing_authority":"Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.","name":"Red Hat Product Security","namespace":"https://www.redhat.com"},"references":[{"category":"self","summary":"Canonical URL","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43827.json"}],"title":"apache-shiro: Apache Shiro: Session fixation vulnerability due to improper session invalidation upon login","tracking":{"current_release_date":"2026-08-07T09:49:29+00:00","generator":{"date":"2026-08-07T09:49:29+00:00","engine":{"name":"Red Hat SDEngine","version":"5.3.12"}},"id":"CVE-2026-43827","initial_release_date":"2026-05-25T20:19:03.428000+00:00","revision_history":[{"date":"2026-05-25T20:19:03.428000+00:00","number":"1","summary":"Initial version"},{"date":"2026-07-01T03:01:16+00:00","number":"2","summary":"Current version"},{"date":"2026-08-07T09:49:29+00:00","number":"3","summary":"Last generated version"}],"status":"final","version":"3"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"Red Hat Fuse 7","product":{"name":"Red Hat Fuse 7","product_id":"red_hat_fuse_7","product_identification_helper":{"cpe":"cpe:/a:redhat:jboss_fuse:7"}}}],"category":"product_family","name":"Red Hat Fuse 7"},{"branches":[{"category":"product_name","name":"Red Hat JBoss Enterprise Application Platform Expansion Pack","product":{"name":"Red Hat JBoss Enterprise Application Platform Expansion Pack","product_id":"red_hat_jboss_enterprise_application_platform_expansion_pack","product_identification_helper":{"cpe":"cpe:/a:redhat:jbosseapxp"}}}],"category":"product_family","name":"Red Hat JBoss Enterprise Application Platform Expansion Pack"},{"category":"product_version","name":"shiro-core","product":{"name":"shiro-core","product_id":"shiro-core","product_identification_helper":{"purl":"pkg:maven/org.apache.shiro/shiro-core"}}}],"category":"vendor","name":"Red Hat"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"shiro-core as a component of Red Hat Fuse 7","product_id":"red_hat_fuse_7:shiro-core"},"product_reference":"shiro-core","relates_to_product_reference":"red_hat_fuse_7"},{"category":"default_component_of","full_product_name":{"name":"shiro-core as a component of Red Hat JBoss Enterprise Application Platform Expansion Pack","product_id":"red_hat_jboss_enterprise_application_platform_expansion_pack:shiro-core"},"product_reference":"shiro-core","relates_to_product_reference":"red_hat_jboss_enterprise_application_platform_expansion_pack"}]},"vulnerabilities":[{"cve":"CVE-2026-43827","cwe":{"id":"CWE-613","name":"Insufficient Session Expiration"},"discovery_date":"2026-05-25T21:00:51.157687+00:00","flags":[{"label":"component_not_present","product_ids":["red_hat_jboss_enterprise_application_platform_expansion_pack:shiro-core"]}],"ids":[{"system_name":"Red Hat Bugzilla ID","text":"2481287"}],"notes":[{"category":"description","text":"A flaw was found in Apache Shiro. This vulnerability, known as session fixation, allows an attacker to hijack a user's session. This occurs because the system fails to invalidate an existing session or generate a new session identifier after a user successfully logs in. Consequently, a remote attacker could exploit this to gain unauthorized access to a user's account and potentially sensitive information.","title":"Vulnerability description"},{"category":"summary","text":"apache-shiro: Apache Shiro: Session fixation vulnerability due to improper session invalidation upon login","title":"Vulnerability summary"},{"category":"general","text":"The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.","title":"CVSS score applicability"}],"product_status":{"known_affected":["red_hat_fuse_7:shiro-core"],"known_not_affected":["red_hat_jboss_enterprise_application_platform_expansion_pack:shiro-core"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2026-43827"},{"category":"external","summary":"RHBZ#2481287","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2481287"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2026-43827","url":"https://www.cve.org/CVERecord?id=CVE-2026-43827"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2026-43827","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43827"},{"category":"external","summary":"https://shiro.apache.org/security-reports.html#cve_2026_43827","url":"https://shiro.apache.org/security-reports.html#cve_2026_43827"}],"release_date":"2026-05-25T20:19:03.428000+00:00","remediations":[{"category":"no_fix_planned","details":"Out of support scope","product_ids":["red_hat_fuse_7:shiro-core"]}],"scores":[{"cvss_v3":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","version":"3.1"},"products":["red_hat_fuse_7:shiro-core","red_hat_jboss_enterprise_application_platform_expansion_pack:shiro-core"]}],"threats":[{"category":"impact","details":"Moderate","product_ids":["red_hat_fuse_7:shiro-core","red_hat_jboss_enterprise_application_platform_expansion_pack:shiro-core"]}],"title":"apache-shiro: Apache Shiro: Session fixation vulnerability due to improper session invalidation upon login"}]}