{"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-2026-41851.json"}],"title":"Spring Framework: Spring Framework: Denial of Service via unbounded cache growth in SpEL evaluation","tracking":{"current_release_date":"2026-07-17T13:20:05+00:00","generator":{"date":"2026-07-17T13:20:05+00:00","engine":{"name":"Red Hat SDEngine","version":"5.3.7"}},"id":"CVE-2026-41851","initial_release_date":"2026-06-09T03:51:32.074000+00:00","revision_history":[{"date":"2026-06-09T03:51:32.074000+00:00","number":"1","summary":"Initial version"},{"date":"2026-07-17T13:19:10+00:00","number":"2","summary":"Current version"},{"date":"2026-07-17T13:20:05+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-expression","product":{"name":"spring-expression","product_id":"spring-expression","product_identification_helper":{"purl":"pkg:maven/org.springframework/spring-expression@6.2.14"}}}],"category":"vendor","name":"Red Hat"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"spring-expression as a component of OpenShift Developer Tools and Services","product_id":"openshift_developer_tools_and_services:spring-expression"},"product_reference":"spring-expression","relates_to_product_reference":"openshift_developer_tools_and_services"},{"category":"default_component_of","full_product_name":{"name":"spring-expression as a component of Red Hat OpenShift Dev Spaces","product_id":"red_hat_openshift_dev_spaces:spring-expression"},"product_reference":"spring-expression","relates_to_product_reference":"red_hat_openshift_dev_spaces"}]},"vulnerabilities":[{"cve":"CVE-2026-41851","cwe":{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"},"discovery_date":"2026-06-09T05:01:01.171171+00:00","ids":[{"system_name":"Red Hat Bugzilla ID","text":"2486700"}],"notes":[{"category":"description","text":"A flaw was found in Spring Framework. Applications that accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack. This occurs if the evaluation of a SpEL expression triggers unbounded cache growth, consuming excessive resources and making the application unavailable to legitimate users.","title":"Vulnerability description"},{"category":"summary","text":"Spring Framework: Spring Framework: Denial of Service via unbounded cache growth in SpEL evaluation","title":"Vulnerability summary"},{"category":"other","text":"A flaw was found in Spring Framework. Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation triggers unbounded cache growth. An attacker can cause memory exhaustion after a high volume of evaluations, resulting in application unavailability.","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-expression","red_hat_openshift_dev_spaces:spring-expression"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2026-41851"},{"category":"external","summary":"RHBZ#2486700","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486700"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2026-41851","url":"https://www.cve.org/CVERecord?id=CVE-2026-41851"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2026-41851","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41851"},{"category":"external","summary":"https://spring.io/security/cve-2026-41851","url":"https://spring.io/security/cve-2026-41851"}],"release_date":"2026-06-09T03:51:32.074000+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-expression","red_hat_openshift_dev_spaces:spring-expression"]},{"category":"none_available","details":"Fix deferred","product_ids":["openshift_developer_tools_and_services:spring-expression","red_hat_openshift_dev_spaces:spring-expression"]}],"scores":[{"cvss_v3":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"products":["openshift_developer_tools_and_services:spring-expression","red_hat_openshift_dev_spaces:spring-expression"]}],"threats":[{"category":"impact","details":"Important","product_ids":["openshift_developer_tools_and_services:spring-expression","red_hat_openshift_dev_spaces:spring-expression"]}],"title":"Spring Framework: Spring Framework: Denial of Service via unbounded cache growth in SpEL evaluation"}]}