{"cve":"CVE-2020-28924","nvd":{"published":"2020-11-19T20:15:12.983","modified":"2026-06-17T03:10:50.093","status":"Modified","description":"An issue was discovered in Rclone before 1.53.3. Due to the use of a weak random number generator, the password generator has been producing weak passwords with much less entropy than advertised. The suggested passwords depend deterministically on the time the second rclone was started. This limits the entropy of the passwords enormously. These passwords are often used in the crypt backend for encryption of data. It would be possible to make a dictionary of all possible passwords with about 38 million entries per password length. This would make decryption of secret material possible with a plausible amount of effort. NOTE: all passwords generated by affected versions should be changed.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-331","CWE-338"],"references":["https://github.com/rclone/rclone/issues/4783","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD/","https://rclone.org/downloads/","https://security.gentoo.org/glsa/202107-14","https://github.com/rclone/rclone/issues/4783"],"products":["fedoraproject:fedora","rclone:rclone"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-28924","score":0.01381,"percentile":0.7215,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rmw5-xpg9-jr29","url":"https://osv.dev/vulnerability/GHSA-rmw5-xpg9-jr29","summary":"Use of Cryptographically Weak Pseudo-Random Number Generator in Rclone","modified":"2024-08-21T15:58:58.559623Z","packages":[{"ecosystem":"Go","name":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","ranges":["<1.53.3"],"fixed":["1.53.3"]}]},{"id":"GO-2022-0878","url":"https://osv.dev/vulnerability/GO-2022-0878","summary":"Use of Cryptographically Weak Pseudo-Random Number Generator in Rclone in github.com/rclone/rclone","modified":"2026-03-03T04:52:21.480314Z","packages":[{"ecosystem":"Go","name":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","ranges":["<1.53.3"],"fixed":["1.53.3"]}]}],"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."]}