{"id":"CVE-2026-41850","title":"Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions are vulnerable to an Algorithmic Denial of Service (DoS)","summary":"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 cons…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-407"],"vendor":"vmware","product":"spring_framework","affected":["spring_framework >= 5.3.0, < 5.3.49","spring_framework >= 6.1.0, < 6.1.28","spring_framework >= 6.2.0, < 6.2.18.1","spring_framework >= 7.0.0, < 7.0.7.1"],"patched":["spring_framework 7.0.7.1"],"published":"2026-06-09","updated":"2026-07-17","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-41850","references":[{"url":"https://spring.io/security/cve-2026-41850","label":"security@vmware.com"}],"tags":["nvd"],"epss":0.0036,"epssPercentile":0.29675,"ingestedAt":"2026-07-17T21:16:23.866Z","slug":"CVE-2026-41850","body":"## Overview\n\nApplications 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.\n\n## Affected\n\n- `spring_framework >= 5.3.0, < 5.3.49`\n- `spring_framework >= 6.1.0, < 6.1.28`\n- `spring_framework >= 6.2.0, < 6.2.18.1`\n- `spring_framework >= 7.0.0, < 7.0.7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `spring_framework 7.0.7.1`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}