{"id":"PYSEC-2023-189","details":"Versions of the package asyncua before 0.9.96 are vulnerable to Improper Authentication such that it is possible to access Address Space without encryption and authentication.\r\r**Note:**\r\rThis issue is a result of missing checks for services that require an active session.","aliases":["CVE-2023-26150","GHSA-2894-qcqf-g23g"],"modified":"2026-06-10T17:00:49.485409044Z","published":"2023-10-03T05:15:00Z","references":[{"type":"FIX","url":"https://github.com/FreeOpcUa/opcua-asyncio/commit/b4106dfd5037423c9d1810b48a97296b59cde513"},{"type":"FIX","url":"https://github.com/FreeOpcUa/opcua-asyncio/commit/2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a"},{"type":"WEB","url":"https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96"},{"type":"EVIDENCE","url":"https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435"},{"type":"FIX","url":"https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435"},{"type":"EVIDENCE","url":"https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121"},{"type":"WEB","url":"https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121"},{"type":"EVIDENCE","url":"https://github.com/FreeOpcUa/opcua-asyncio/issues/1014"},{"type":"REPORT","url":"https://github.com/FreeOpcUa/opcua-asyncio/issues/1014"},{"type":"FIX","url":"https://github.com/FreeOpcUa/opcua-asyncio/pull/1015"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-2894-qcqf-g23g"}],"affected":[{"package":{"name":"asyncua","ecosystem":"PyPI","purl":"pkg:pypi/asyncua"},"ranges":[{"type":"GIT","repo":"https://github.com/FreeOpcUa/opcua-asyncio","events":[{"introduced":"0"},{"fixed":"b4106dfd5037423c9d1810b48a97296b59cde513"},{"fixed":"2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a"}]},{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.96"}]}],"versions":["0.5.0","0.5.1","0.6.0","0.6.1","0.8.0","0.8.1","0.8.2","0.8.3","0.8.4","0.9.0","0.9.1","0.9.10","0.9.11","0.9.12","0.9.14","0.9.2","0.9.3","0.9.6","0.9.8","0.9.9","0.9.90","0.9.91","0.9.92","0.9.93","0.9.94","0.9.95","v0.9.95","v0.9.94","v0.9.93","v0.9.92","v0.9.91","v0.9.90","v0.9.12","v0.9.11","v0.9.10","v0.9.8","0.9.7","0.9.4","0.90.4","0.90.3","0.90.2","0.90.1","0.90.0","0.10.17","0.10.15","0.10.14","0.10.12","0.10.11","0.10.9","0.10.8","0.10.7","0.10.6","0.10.5","0.10.4","0.10.3","0.10.2","0.10.1","0.10.0","0.10","0.9.19","0.9.18","0.9.17","v0.9.13","0.9.13"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/asyncua/PYSEC-2023-189.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}