{"cve":"CVE-2021-33840","nvd":{"published":"2021-06-04T00:15:07.410","modified":"2026-06-17T03:55:17.600","status":"Modified","description":"The server in Luca through 1.1.14 allows remote attackers to cause a denial of service (insertion of many fake records related to COVID-19) because Phone Number data lacks a digital signature.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-345"],"references":["https://gitlab.com/lucaapp/web/-/issues/1#note_560963608","https://luca-app.de/securityoverview/processes/guest_registration.html#verifying-the-contact-data","https://gitlab.com/lucaapp/web/-/issues/1#note_560963608","https://luca-app.de/securityoverview/processes/guest_registration.html#verifying-the-contact-data"],"products":["luca-app:luca"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-33840","score":0.00898,"percentile":0.59622,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}