{"cve":"CVE-2018-1000809","nvd":{"published":"2018-10-08T15:29:01.057","modified":"2026-06-17T01:33:05.490","status":"Modified","description":"privacyIDEA version 2.23.1 and earlier contains a Improper Input Validation vulnerability in token validation api that can result in Denial-of-Service. This attack appear to be exploitable via http request with user=<space>&pass= to /validate/check url. This vulnerability appears to have been fixed in 2.23.2.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-20"],"references":["https://github.com/privacyidea/privacyidea/commit/a3edc09beffa2104f357fe24971ea3211ce40751","https://github.com/privacyidea/privacyidea/issues/1227","https://github.com/privacyidea/privacyidea/commit/a3edc09beffa2104f357fe24971ea3211ce40751","https://github.com/privacyidea/privacyidea/issues/1227"],"products":["privacyidea:privacyidea"],"source":"nvd","synced_at":"2026-10-19T20:53:14.491561039+00:00"},"epss":{"cve":"CVE-2018-1000809","score":0.01689,"percentile":0.77061,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7qqv-r2q4-jxhm","url":"https://osv.dev/vulnerability/GHSA-7qqv-r2q4-jxhm","summary":"privacyIDEA Improper Input Validation vulnerability","modified":"2024-10-18T22:22:58.534148Z","packages":[{"ecosystem":"PyPI","name":"privacyidea","purl":"pkg:pypi/privacyidea","ranges":["<2.23.2"],"fixed":["2.23.2"]}]},{"id":"PYSEC-2018-20","url":"https://osv.dev/vulnerability/PYSEC-2018-20","summary":"","modified":"2023-11-08T03:59:40.255809Z","packages":[{"ecosystem":"PyPI","name":"privacyidea","purl":"pkg:pypi/privacyidea","ranges":["<2.23.2"],"fixed":["2.23.2"]}]}],"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."]}