{"id":"UBUNTU-CVE-2026-33154","details":"dynaconf is a configuration management tool for Python. Prior to version 3.2.13, Dynaconf is vulnerable to Server-Side Template Injection (SSTI) due to unsafe template evaluation in the @Jinja resolver. When the jinja2 package is installed, Dynaconf evaluates template expressions embedded in configuration values without a sandboxed environment. This issue has been patched in version 3.2.13.","modified":"2026-05-07T14:03:36.769143Z","published":"2026-03-20T21:17:00Z","related":["USN-8231-1"],"upstream":["CVE-2026-33154"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-33154"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-33154"},{"type":"REPORT","url":"https://github.com/dynaconf/dynaconf/commit/2fbb45ee36b8c0caa5b924fe19f3c1a5e8603fa7"},{"type":"REPORT","url":"https://github.com/dynaconf/dynaconf/releases/tag/3.2.13"},{"type":"REPORT","url":"https://github.com/dynaconf/dynaconf/security/advisories/GHSA-pxrr-hq57-q35p"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8231-1"}],"affected":[{"package":{"name":"python-dynaconf","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/python-dynaconf@3.1.7-1ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.7-1ubuntu0.1~esm1"}]}],"versions":["2.2.3-2","3.1.7-1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-dynaconf","binary_version":"3.1.7-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33154.json"}},{"package":{"name":"python-dynaconf","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/python-dynaconf@3.1.7-2ubuntu0.24.04.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.7-2ubuntu0.24.04.1"}]}],"versions":["3.1.7-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-dynaconf","binary_version":"3.1.7-2ubuntu0.24.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33154.json"}},{"package":{"name":"python-dynaconf","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/python-dynaconf@3.1.7-2ubuntu0.25.10.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.7-2ubuntu0.25.10.1"}]}],"versions":["3.1.7-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-dynaconf","binary_version":"3.1.7-2ubuntu0.25.10.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33154.json"}},{"package":{"name":"python-dynaconf","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/python-dynaconf@3.2.12-1ubuntu0.1~esm1?arch=source&distro=esm-apps/resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.12-1ubuntu0.1~esm1"}]}],"versions":["3.1.7-2","3.1.7-3","3.2.12-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"python3-dynaconf","binary_version":"3.2.12-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33154.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}