{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-39181 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-39181 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-39181 is a high-severity unsafe deserialization vulnerability in OpenOLAT, published on 1 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-39181 and fix it if it is affected.\n\nWhat it is: CVE-2021-39181 is a high-severity unsafe deserialization vulnerability in OpenOLAT, published on 1 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-39181 in the wild and no public exploit code.\n\nAffected product: OpenOLAT. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2021-39181/ (Markdown: https://insights.sbomify.com/CVE-2021-39181/index.md)","id":"CVE-2021-39181","markdown":"https://insights.sbomify.com/CVE-2021-39181/index.md","name":"CVE-2021-39181","record":{"aliases":["GHSA-596v-3gwh-2m9w"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenOlat LMS","requires_auth":"low_privilege","summary":"Authenticated users with authoring roles can execute arbitrary code via unsafe deserialization of XML imports in OpenOlat.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"openolat","vendor":"frentix"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-91","name":"XML Injection"}],"description":"OpenOlat is a web-based learning management system (LMS). Prior to version 15.3.18, 15.5.3, and 16.0.0, using a prepared import XML file (e.g. a course) any class on the Java classpath can be instantiated, including spring AOP bean factories. This can be used to execute code arbitrary code by the attacker. The attack requires an OpenOlat user account with the authoring role. It can not be exploited by unregistered users. The problem is fixed in versions 15.3.18, 15.5.3, and 16.0.0. There are no known workarounds aside from upgrading.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Unsafe Deserialization of User Data Using XStream","id":"CVE-2021-39181","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Improper hashing in enrocrypt","id":"CVE-2021-39182"},"packages":[],"prev":{"headline":"Path Traversal in Archive Handling Leading to Code Execution","id":"CVE-2021-39180"},"products":["OpenOLAT"],"published":"2021-09-01","related":[{"cvss_score":9.8,"headline":"OpenOLAT: Authentication bypass via forged JWT in OIDC implicit flow","id":"CVE-2026-31946","kev_date_added":null,"published":"2026-03-30"},{"cvss_score":8.8,"headline":"OpenOLAT: Server-Side Template Injection (SSTI) in Velocity templates allows Remote Code Execution","id":"CVE-2026-28228","kev_date_added":null,"published":"2026-03-30"},{"cvss_score":8.1,"headline":"Path Traversal in some REST methods leading to file upload to arbitrary places","id":"CVE-2021-41242","kev_date_added":null,"published":"2021-12-10"},{"cvss_score":8.1,"headline":"Path Traversal in Archive Handling Leading to Code Execution","id":"CVE-2021-39180","kev_date_added":null,"published":"2021-08-31"},{"cvss_score":7.7,"headline":"Path Traversal in Folder Component Leading to Local File Inclusion","id":"CVE-2021-41152","kev_date_added":null,"published":"2021-10-18"},{"cvss_score":5.4,"headline":"Multiple Stored Cross-Site Scripting Vulnerabilities","id":"CVE-2024-25973","kev_date_added":null,"published":"2024-02-20"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["OpenOLAT"]},"summary":"Authenticated users with authoring roles can execute arbitrary code via unsafe deserialization of XML imports in OpenOlat.","url":"https://insights.sbomify.com/CVE-2021-39181/"}