{"id":"CVE-2026-50787","details":"e-SIC Livre (esiclivre) v0.2.2 and earlier contains an uncontrolled resource consumption vulnerability in restrito/inc/captcha.php. The application uses user-supplied parameters (l, a, tf, ql) without validation to generate CAPTCHA images, allowing remote attackers to cause denial of service via excessive memory and CPU consumption.","modified":"2026-10-28T02:30:36.939099598Z","published":"2026-10-23T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50787.json"},"references":[{"type":"WEB","url":"https://github.com/esiclivre/esiclivre/blob/master/restrito/inc/captcha.php"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50787.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50787"},{"type":"PACKAGE","url":"https://github.com/brynax/CVE-2026-50787"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/esiclivre/esiclivre","events":[{"introduced":"0"},{"last_affected":"0a72b4c9ab89244ec3bd3d7fa0b765850cc9afd7"}],"database_specific":{"extracted_events":[{"source":"DESCRIPTION","range":[{"introduced":"0"},{"last_affected":"0.2.2"}]}]}}],"versions":["v0.2.2","v0.2.1","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50787.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}