{"id":"CVE-2026-50645","title":"There is no restriction on the amount of attachment headers that a message can contain when being deserialized by Apache CXF, which can lead to uncontrolled resource consumption or a denial of service attack. Users are recommended to upg…","summary":"There is no restriction on the amount of attachment headers that a message can contain when being deserialized by Apache CXF, which can lead to uncontrolled resource consumption or a denial of service attack. Users are recommended to upg…","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-400"],"vendor":"apache","product":"cxf","affected":["cxf < 4.1.7","cxf >= 4.2.0, < 4.2.2"],"patched":["cxf 4.2.2"],"published":"2026-06-12","updated":"2026-08-07","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-50645","references":[{"url":"https://lists.apache.org/thread/24zb7cqcvykhwm0j797dmdq25s61mj93","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/11/12","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00459,"epssPercentile":0.39105,"ingestedAt":"2026-08-07T14:14:17.602Z","slug":"CVE-2026-50645","body":"## Overview\n\nThere is no restriction on the amount of attachment headers that a message can contain when being deserialized by Apache CXF, which can lead to uncontrolled resource consumption or a denial of service attack. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue by imposing a maximum default of 500 attachments per message.\n\n## Affected\n\n- `cxf < 4.1.7`\n- `cxf >= 4.2.0, < 4.2.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `cxf 4.2.2`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}