{"answers":{"affected":"3 open source packages ship an affected version, including asyncua. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26150 exists.","fix":"Upgrade asyncua to 0.9.96 or later.","what":"CVE-2023-26150 is a medium-severity authentication bypass vulnerability in asyncua, published on 3 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-26150 and fix it if it is affected.\n\nWhat it is: CVE-2023-26150 is a medium-severity authentication bypass vulnerability in asyncua, published on 3 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26150 exists.\n\nAffected packages and fixed versions:\n- asyncua (PyPI): affected all versions; fixed in 0.9.96\n- asyncua (PyPI): affected all versions; fixed in 0.9.96\n- asyncua (PyPI): affected all versions; fixed in 0.9.96\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-26150/ (Markdown: https://insights.sbomify.com/CVE-2023-26150/index.md)","id":"CVE-2023-26150","markdown":"https://insights.sbomify.com/CVE-2023-26150/index.md","name":"CVE-2023-26150","record":{"aliases":["GHSA-2894-qcqf-g23g","PYSEC-2023-189","UBUNTU-CVE-2023-26150"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Python OPC UA library","requires_auth":"none","summary":"Attackers can access the OPC UA Address Space without authentication or encryption due to missing session checks in the asyncua library.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"opcua-asyncio","vendor":"freeopcua"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"asyncua Improper Authentication vulnerability","id":"CVE-2023-26150","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"auth_bypass","year":"2023"},"n_packages":3,"n_references":7,"next":{"headline":"asyncua vulnerable to denial of service via infinite loop","id":"CVE-2023-26151"},"packages":[{"ecosystem":"PyPI","fixed":["0.9.96"],"introduced":["0"],"last_affected":[],"package":"asyncua","purl":null,"source":"GHSA-2894-qcqf-g23g"},{"ecosystem":"PyPI","fixed":["0.9.96"],"introduced":["0"],"last_affected":[],"package":"asyncua","purl":"pkg:pypi/asyncua","source":"GHSA-2894-qcqf-g23g"},{"ecosystem":"PyPI","fixed":["0.9.96"],"introduced":["0"],"last_affected":[],"package":"asyncua","purl":"pkg:pypi/asyncua","source":"PYSEC-2023-189"}],"prev":{"headline":"quill-mention Cross-site Scripting vulnerability","id":"CVE-2023-26149"},"products":["asyncua"],"published":"2023-10-03","related":[{"cvss_score":5.3,"headline":"asyncua vulnerable to denial of service via infinite loop","id":"CVE-2023-26151","kev_date_added":null,"published":"2023-10-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-09-20","vendors":["n/a"]},"summary":"Attackers can access the OPC UA Address Space without authentication or encryption due to missing session checks in the asyncua library.","url":"https://insights.sbomify.com/CVE-2023-26150/"}