{"cve":"CVE-2023-26150","nvd":{"published":"2023-10-03T05:15:49.963","modified":"2026-06-17T05:42:47.390","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-287"],"references":["https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121","https://github.com/FreeOpcUa/opcua-asyncio/commit/2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a","https://github.com/FreeOpcUa/opcua-asyncio/commit/b4106dfd5037423c9d1810b48a97296b59cde513","https://github.com/FreeOpcUa/opcua-asyncio/issues/1014","https://github.com/FreeOpcUa/opcua-asyncio/pull/1015"],"products":["freeopcua:opcua-asyncio"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-26150","score":0.00524,"percentile":0.44486,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-2894-qcqf-g23g","url":"https://osv.dev/vulnerability/GHSA-2894-qcqf-g23g","summary":"asyncua Improper Authentication vulnerability","modified":"2024-02-16T08:07:34.917892Z","packages":[{"ecosystem":"PyPI","name":"asyncua","purl":"pkg:pypi/asyncua","ranges":["<0.9.96"],"fixed":["0.9.96"]}]},{"id":"PYSEC-2023-189","url":"https://osv.dev/vulnerability/PYSEC-2023-189","summary":"","modified":"2026-06-10T17:00:49.485409044Z","packages":[{"ecosystem":"PyPI","name":"asyncua","purl":"pkg:pypi/asyncua","ranges":["<0.9.96"],"fixed":["0.9.96"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}