{"answers":{"affected":"2 open source packages ship an affected version, including org.jyaml:jyaml. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8441 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-8441 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-8441 is a critical unsafe deserialization vulnerability in n/a, published on 19 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8441 and fix it if it is affected.\n\nWhat it is: CVE-2020-8441 is a critical unsafe deserialization vulnerability in n/a, published on 19 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8441 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.jyaml:jyaml (Maven): affected all versions up to 1.3; no fix listed\n- org.jyaml:jyaml (Maven): affected all versions up to 1.3; no fix listed\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-2020-8441/ (Markdown: https://insights.sbomify.com/CVE-2020-8441/index.md)","id":"CVE-2020-8441","markdown":"https://insights.sbomify.com/CVE-2020-8441/index.md","name":"CVE-2020-8441","record":{"aliases":["GHSA-4qhr-q7wf-94xp"],"analysis":{"component_type":"library","fix_type":"end_of_life","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Java YAML library","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via malicious YAML payloads in the discontinued JYaml library.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"jyaml","vendor":"jyaml_project"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.","ecosystems":["Maven"],"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":"Deserialization of Untrusted Data in JYaml","id":"CVE-2020-8441","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"deserialization","year":"2020"},"n_packages":2,"n_references":5,"next":{"headline":"Memory corruption in n/a","id":"CVE-2020-8442"},"packages":[{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["1.3"],"package":"org.jyaml:jyaml","purl":null,"source":"GHSA-4qhr-q7wf-94xp"},{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["1.3"],"package":"org.jyaml:jyaml","purl":"pkg:maven/org.jyaml/jyaml","source":"GHSA-4qhr-q7wf-94xp"}],"prev":{"headline":"File upload in n/a","id":"CVE-2020-8440"},"products":["n/a"],"published":"2020-02-19","related":[],"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":"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":["n/a"]},"summary":"Remote attackers can execute arbitrary code via malicious YAML payloads in the discontinued JYaml library.","url":"https://insights.sbomify.com/CVE-2020-8441/"}