{"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-2026-41839.json"}],"title":"spring-framework: Spring Framework: Privilege escalation via session ID exchange in WebFlux applications","tracking":{"current_release_date":"2026-07-17T13:20:15+00:00","generator":{"date":"2026-07-17T13:20:15+00:00","engine":{"name":"Red Hat SDEngine","version":"5.3.7"}},"id":"CVE-2026-41839","initial_release_date":"2026-06-09T03:49:52.381000+00:00","revision_history":[{"date":"2026-06-09T03:49:52.381000+00:00","number":"1","summary":"Initial version"},{"date":"2026-07-17T13:19:13+00:00","number":"2","summary":"Current version"},{"date":"2026-07-17T13:20:15+00:00","number":"3","summary":"Last generated version"}],"status":"final","version":"3"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"OpenShift Developer Tools and Services","product":{"name":"OpenShift Developer Tools and Services","product_id":"openshift_developer_tools_and_services","product_identification_helper":{"cpe":"cpe:/a:redhat:ocp_tools"}}}],"category":"product_family","name":"OpenShift Developer Tools and Services"},{"branches":[{"category":"product_name","name":"Red Hat OpenShift Dev Spaces","product":{"name":"Red Hat OpenShift Dev Spaces","product_id":"red_hat_openshift_dev_spaces","product_identification_helper":{"cpe":"cpe:/a:redhat:openshift_devspaces:3"}}}],"category":"product_family","name":"Red Hat OpenShift Dev Spaces"},{"category":"product_version","name":"spring-web","product":{"name":"spring-web","product_id":"spring-web","product_identification_helper":{"purl":"pkg:maven/org.springframework/spring-web@6.2.14"}}}],"category":"vendor","name":"Red Hat"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"spring-web as a component of OpenShift Developer Tools and Services","product_id":"openshift_developer_tools_and_services:spring-web"},"product_reference":"spring-web","relates_to_product_reference":"openshift_developer_tools_and_services"},{"category":"default_component_of","full_product_name":{"name":"spring-web as a component of Red Hat OpenShift Dev Spaces","product_id":"red_hat_openshift_dev_spaces:spring-web"},"product_reference":"spring-web","relates_to_product_reference":"red_hat_openshift_dev_spaces"}]},"vulnerabilities":[{"cve":"CVE-2026-41839","cwe":{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"},"discovery_date":"2026-06-09T05:01:19.415893+00:00","ids":[{"system_name":"Red Hat Bugzilla ID","text":"2486706"}],"notes":[{"category":"description","text":"A flaw was found in Spring Framework. A remote attacker, by compromising a subdomain of a WebFlux application (for example, through cross-site scripting (XSS)), could exploit this vulnerability to escalate privileges. This allows the attacker to exchange a known session ID for that of an authenticated user, potentially leading to unauthorized access to the application.","title":"Vulnerability description"},{"category":"summary","text":"spring-framework: Spring Framework: Privilege escalation via session ID exchange in WebFlux applications","title":"Vulnerability summary"},{"category":"other","text":"A flaw was found in Spring Framework. A WebFlux application with a compromised subdomain is vulnerable to an escalation attack exchanging a known session ID for that of an authenticated user.","title":"Statement"},{"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":["openshift_developer_tools_and_services:spring-web","red_hat_openshift_dev_spaces:spring-web"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2026-41839"},{"category":"external","summary":"RHBZ#2486706","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486706"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2026-41839","url":"https://www.cve.org/CVERecord?id=CVE-2026-41839"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2026-41839","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41839"},{"category":"external","summary":"https://spring.io/security/cve-2026-41839","url":"https://spring.io/security/cve-2026-41839"}],"release_date":"2026-06-09T03:49:52.381000+00:00","remediations":[{"category":"workaround","details":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.","product_ids":["openshift_developer_tools_and_services:spring-web","red_hat_openshift_dev_spaces:spring-web"]},{"category":"none_available","details":"Fix deferred","product_ids":["openshift_developer_tools_and_services:spring-web","red_hat_openshift_dev_spaces:spring-web"]}],"scores":[{"cvss_v3":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.2,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"products":["openshift_developer_tools_and_services:spring-web","red_hat_openshift_dev_spaces:spring-web"]}],"threats":[{"category":"impact","details":"Moderate","product_ids":["openshift_developer_tools_and_services:spring-web","red_hat_openshift_dev_spaces:spring-web"]}],"title":"spring-framework: Spring Framework: Privilege escalation via session ID exchange in WebFlux applications"}]}