{"id":"CVE-2025-49136","aliases":["GHSA-jc7g-x28f-3v3h","GO-2025-3745"],"url":"https://o3.security/vulnerability/CVE-2025-49136","summary":"listmonk's Sprig template Injection vulnerability leads to reading of Environment Variable for low privilege user","details":"listmonk is a standalone, self-hosted, newsletter and mailing list manager. Starting in version 4.0.0 and prior to version 5.0.2, the `env` and `expandenv` template functions which is enabled by default in Sprig enables capturing of env variables on host. While this may not be a problem on single-user (super admin) installations, on multi-user installations, this allows non-super-admin users with campaign or template permissions to use the `{{ env }}` template expression to capture sensitive environment variables. Users should upgrade to v5.0.2 to mitigate the issue.","published":"2025-06-09T16:21:48.266Z","modified":"2026-08-08T03:47:53.909625018Z","cvss":{"score":9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/knadh/listmonk","fixedVersion":"5.0.2"}],"fix":{"url":"https://github.com/knadh/listmonk/commit/d27d2c32cf3af2d0b24e29ea5a686ba149b49b3e","label":"knadh/listmonk@d27d2c3"},"references":[{"type":"WEB","url":"https://github.com/knadh/listmonk/releases/tag/v5.0.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49136.json"},{"type":"ADVISORY","url":"https://github.com/knadh/listmonk/security/advisories/GHSA-jc7g-x28f-3v3h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49136"},{"type":"FIX","url":"https://github.com/knadh/listmonk/commit/d27d2c32cf3af2d0b24e29ea5a686ba149b49b3e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:47:53.909625018Z"}}