{"cve":"CVE-2021-37629","nvd":{"published":"2021-09-07T21:15:08.807","modified":"2026-06-17T04:00:51.803","status":"Modified","description":"Nextcloud Richdocuments is an open source collaborative office suite. In affected versions there is a lack of rate limiting on the Richdocuments OCS endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. It is recommended that the Nextcloud Richdocuments app is upgraded to either 3.8.4 or 4.2.1 to resolve. For users unable to upgrade it is recommended that the Richdocuments application be disabled.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-770","CWE-200"],"references":["https://github.com/nextcloud/richdocuments/pull/1663","https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx","https://hackerone.com/reports/1258750","https://github.com/nextcloud/richdocuments/pull/1663","https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx"],"products":["nextcloud:richdocuments"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-37629","score":0.0138,"percentile":0.72134,"date":"2026-10-31"},"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."]}