{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-24032 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-24032 is a medium-severity vulnerability in Facebook Zstandard, published on 4 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-24032 and fix it if it is affected.\n\nWhat it is: CVE-2021-24032 is a medium-severity vulnerability in Facebook Zstandard, published on 4 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-24032 in the wild and no public exploit code.\n\nAffected product: Facebook Zstandard. 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-2021-24032/ (Markdown: https://insights.sbomify.com/CVE-2021-24032/index.md)","id":"CVE-2021-24032","markdown":"https://insights.sbomify.com/CVE-2021-24032/index.md","name":"CVE-2021-24032","record":{"aliases":["ALPINE-CVE-2021-24032","AZL-38944","AZL-39352","CLEANSTART-2025-AN69250","DEBIAN-CVE-2021-24032","DSA-4859-1","GHSA-ffqj-7pgc-cmj5","JLSEC-2026-121","MGASA-2021-0323","OESA-2021-1094","UBUNTU-CVE-2021-24032"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Zstandard CLI utility","requires_auth":"low_privilege","summary":"The Zstandard command-line utility temporarily exposed output files with default permissions, allowing local attackers to read or modify them before restrictions were applied.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"facebook","cpe":[{"product":"zstandard","vendor":"facebook"}],"cvss":{"score":4.7,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-276","name":"Incorrect Default Permissions"},{"id":"CWE-277","name":"Insecure Inherited Permissions"}],"description":"Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard command-line utility created output files with default permissions and restricted those permissions immediately afterwards. Output files could therefore momentarily be readable or writable to unintended parties.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Information disclosure in Zstandard","id":"CVE-2021-24032","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"react-dev-utils OS Command Injection in function `getProcessForPort`","id":"CVE-2021-24033"},"packages":[],"prev":{"headline":"Information disclosure in Zstandard","id":"CVE-2021-24031"},"products":["Zstandard"],"published":"2021-03-04","related":[{"cvss_score":8.1,"headline":"Race condition in Zstandard","id":"CVE-2019-11922","kev_date_added":null,"published":"2019-07-25"},{"cvss_score":7.5,"headline":"zstd vulnerable to buffer overrun","id":"CVE-2022-4899","kev_date_added":null,"published":"2023-03-31"},{"cvss_score":5.5,"headline":"Information disclosure in Zstandard","id":"CVE-2021-24031","kev_date_added":null,"published":"2021-03-04"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["Facebook"]},"summary":"The Zstandard command-line utility temporarily exposed output files with default permissions, allowing local attackers to read or modify them before restrictions were applied.","url":"https://insights.sbomify.com/CVE-2021-24032/"}