{"id":"CVE-2023-26150","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":["GHSA-2894-qcqf-g23g","PYSEC-2023-189"],"modified":"2026-08-12T03:51:27.819872792Z","published":"2023-10-03T05:00:02.176Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26150.json","cna_assigner":"snyk","cwe_ids":["CWE-287"]},"references":[{"type":"WEB","url":"https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121"},{"type":"WEB","url":"https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26150.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26150"},{"type":"REPORT","url":"https://github.com/FreeOpcUa/opcua-asyncio/issues/1014"},{"type":"FIX","url":"https://github.com/FreeOpcUa/opcua-asyncio/commit/2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a"},{"type":"FIX","url":"https://github.com/FreeOpcUa/opcua-asyncio/commit/b4106dfd5037423c9d1810b48a97296b59cde513"},{"type":"FIX","url":"https://github.com/FreeOpcUa/opcua-asyncio/pull/1015"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/freeopcua/opcua-asyncio","events":[{"introduced":"0"},{"fixed":"c55447d865a6f9b9505bc538f3c56cf3a1421c60"},{"fixed":"2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a"},{"fixed":"b4106dfd5037423c9d1810b48a97296b59cde513"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.9.96"}],"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:freeopcua:opcua-asyncio:*:*:*:*:*:python:*:*"}}],"versions":["v0.9.95","v0.9.94","v0.9.93","v0.9.92","v0.9.91","v0.9.90","0.9.14","v0.9.12","v0.9.11","v0.9.10","v0.9.8","0.9.7","0.9.6","0.9.4","0.9.3","0.9.2","0.9.1","0.9.0","0.8.4","0.8.3","0.8.2","0.8.1","0.8.0","0.6.1","0.6.0","0.5.1","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://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-26150.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P"}]}