{"id":"CLEANSTART-2026-CX77611","summary":"Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions are vulnerable to an Algorithmic Denial of Service (DoS)","details":"Security vulnerability affects the apache-nifi package. Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions are vulnerable to an Algorithmic Denial of Service (DoS).","modified":"2026-10-01T01:00:08.013716183Z","published":"2026-10-01T00:35:34.678688Z","upstream":["CVE-2026-41850"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-CX77611.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-41850"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41850"}],"affected":[{"package":{"name":"apache-nifi","ecosystem":"CleanStart"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.0-r1"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-CX77611.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}