{"id":"CVE-2026-34584","summary":"listmonk: Broken Access Control in CSV Import (Unauthorized List Assignment)","details":"listmonk is a standalone, self-hosted, newsletter and mailing list manager. From version 4.1.0 to before version 6.1.0, bugs in list permission checks allows users in a multi-user environment to access to lists (which they don't have access to) under different scenarios. This only affects multi-user environments with untrusted users. This issue has been patched in version 6.1.0.","aliases":["GHSA-85j8-5c6w-gcpv"],"modified":"2026-08-12T03:51:25.026588690Z","published":"2026-04-02T17:31:37.615Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34584.json"},"references":[{"type":"WEB","url":"https://github.com/knadh/listmonk/releases/tag/v6.1.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34584.json"},{"type":"ADVISORY","url":"https://github.com/knadh/listmonk/security/advisories/GHSA-85j8-5c6w-gcpv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34584"},{"type":"FIX","url":"https://github.com/knadh/listmonk/commit/347f5976759232c36e571cf58b4bfe33c2794f35"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/knadh/listmonk","events":[{"introduced":"0a27de16c6e23b7d4b84d4d91fe59bea10877ad1"},{"fixed":"1b5e8d38c778e869003486d3c38bc7a964661e91"},{"fixed":"347f5976759232c36e571cf58b4bfe33c2794f35"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:nadh:listmonk:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.1.0"},{"fixed":"6.1.0"}]}}],"versions":["nightly","v6.0.0","v5.1.0","v5.0.3","v5.0.2","v5.0.1","v5.0.0","v4.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34584.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}