{"id":"USN-8231-1","summary":"python-dynaconf vulnerability","details":"It was discovered that Dynaconf was incorrectly handling template evaluation\nin its string resolvers. A remote attacker could possibly use this issue\nto execute arbitrary code.","modified":"2026-05-07T14:14:21.435406879Z","published":"2026-05-06T09:06:00Z","related":["UBUNTU-CVE-2026-33154"],"upstream":["CVE-2026-33154","UBUNTU-CVE-2026-33154"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8231-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-33154"}],"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/usn/USN-8231-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:22.04:LTS","cves":[{"id":"CVE-2026-33154","severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}},{"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":{"binaries":[{"binary_name":"python3-dynaconf","binary_version":"3.1.7-2ubuntu0.24.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8231-1.json","cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"id":"CVE-2026-33154","severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}},{"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":{"binaries":[{"binary_name":"python3-dynaconf","binary_version":"3.1.7-2ubuntu0.25.10.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8231-1.json","cves_map":{"ecosystem":"Ubuntu:25.10","cves":[{"id":"CVE-2026-33154","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"}]}]}}},{"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":{"binaries":[{"binary_name":"python3-dynaconf","binary_version":"3.2.12-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8231-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:26.04:LTS","cves":[{"id":"CVE-2026-33154","severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.5"}