{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-41850: Spring Framework Algorithmic Denial of Service via SpEL Expressions","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-41850","status":"final","version":"1","initial_release_date":"2026-06-09T03:51:22.479Z","current_release_date":"2026-06-09T13:34:37.847Z","revision_history":[{"date":"2026-06-09T03:51:22.479Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions are vulnerable to an Algorithmic Denial of Service (DoS). By providing a specially crafted expression, an attacker can trigger excessive resource consumption during evaluation, leading to application degradation or unavailability.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-41850 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-41850"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-41850"},{"category":"external","summary":"spring.io","url":"https://spring.io/security/cve-2026-41850"}]},"product_tree":{"branches":[{"category":"vendor","name":"Spring","branches":[{"category":"product_name","name":"Spring Framework","branches":[{"category":"product_version_range","name":">=7.0.0 <7.0.8","product":{"name":"Spring Spring Framework >=7.0.0 <7.0.8","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_framework:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=6.2.0 <6.2.19","product":{"name":"Spring Spring Framework >=6.2.0 <6.2.19","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_framework:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=6.1.0 <6.1.28","product":{"name":"Spring Spring Framework >=6.1.0 <6.1.28","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_framework:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=5.3.0 <5.3.49","product":{"name":"Spring Spring Framework >=5.3.0 <5.3.49","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_framework:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-41850","title":"Spring Framework Algorithmic Denial of Service via SpEL Expressions","notes":[{"category":"description","text":"Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions are vulnerable to an Algorithmic Denial of Service (DoS). By providing a specially crafted expression, an attacker can trigger excessive resource consumption during evaluation, leading to application degradation or unavailability.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 5.3.49, 6.1.28, 6.2.19, 7.0.8.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4"]}]}]}