{"cve":"CVE-2021-41082","nvd":{"published":"2021-09-20T21:15:07.523","modified":"2026-06-17T04:07:50.400","status":"Modified","description":"Discourse is a platform for community discussion. In affected versions any private message that includes a group had its title and participating user exposed to users that do not have access to the private messages. However, access control for the private messages was not compromised as users were not able to view the posts in the leaked private message despite seeing it in their inbox. The problematic commit was reverted around 32 minutes after it was made. Users are encouraged to upgrade to the latest commit if they are running Discourse against the `tests-passed` branch.","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-863","CWE-200"],"references":["https://github.com/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b","https://github.com/discourse/discourse/commit/ddb458343dc39a7a8c99467dcd809b444514fe2c","https://github.com/discourse/discourse/security/advisories/GHSA-vm3x-w6jm-j9vv","https://github.com/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b","https://github.com/discourse/discourse/commit/ddb458343dc39a7a8c99467dcd809b444514fe2c"],"products":["discourse:discourse"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-41082","score":0.0179,"percentile":0.78369,"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."]}