{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-41110 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-41110 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-41110 is a critical unsafe deserialization vulnerability in common-workflow-language cwlviewer, published on 1 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-41110 and fix it if it is affected.\n\nWhat it is: CVE-2021-41110 is a critical unsafe deserialization vulnerability in common-workflow-language cwlviewer, published on 1 Oct 2021. 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-2021-41110 in the wild and no public exploit code.\n\nAffected product: common-workflow-language cwlviewer. 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-2021-41110/ (Markdown: https://insights.sbomify.com/CVE-2021-41110/index.md)","id":"CVE-2021-41110","markdown":"https://insights.sbomify.com/CVE-2021-41110/index.md","name":"CVE-2021-41110","record":{"aliases":["GHSA-7g7j-f5g3-fqp7"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"CWL Viewer","requires_auth":"none","summary":"Attackers can achieve complete system takeover via unsafe YAML deserialization in CWL Viewer, requiring immediate patching.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cwlviewer","vendor":"commonwl"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"cwlviewer is a web application to view and share Common Workflow Language workflows. Versions prior to 1.3.1 contain a Deserialization of Untrusted Data vulnerability. Commit number f6066f09edb70033a2ce80200e9fa9e70a5c29de (dated 2021-09-30) contains a patch. There are no available workarounds aside from installing the patch. The SnakeYaml constructor, by default, allows any data to be parsed. To fix the issue the object needs to be created with a `SafeConstructor` object, as seen in the patch.","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":"CWL Viewer: deserialization of untrusted data can lead to complete takeover by an attacker","id":"CVE-2021-41110","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Authorization Bypass Through User-Controlled Key in Rundeck","id":"CVE-2021-41111"},"packages":[],"prev":{"headline":"LiveQuery publishes user session tokens","id":"CVE-2021-41109"},"products":["cwlviewer"],"published":"2021-10-01","related":[],"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":["common-workflow-language"]},"summary":"Attackers can achieve complete system takeover via unsafe YAML deserialization in CWL Viewer, requiring immediate patching.","url":"https://insights.sbomify.com/CVE-2021-41110/"}