{"answers":{"affected":"2 open source packages ship an affected version, including node and node-min. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-21716 in the wild and no public exploit code.","fix":"Upgrade node to a fixed version for your release line: 20.20.2, 22.22.2, 24.14.1 or 25.8.2.","what":"CVE-2026-21716 is a low-severity vulnerability in Nodejs Node.js, published on 30 Mar 2026. 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-2026-21716 and fix it if it is affected.\n\nWhat it is: CVE-2026-21716 is a low-severity vulnerability in Nodejs Node.js, published on 30 Mar 2026. 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-2026-21716 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- node (Bitnami): affected all versions; fixed in 20.20.2, 22.22.2, 24.14.1, 25.8.2\n- node-min (Bitnami): affected all versions; fixed in 20.20.2, 22.22.2, 24.14.1, 25.8.2\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-2026-21716/ (Markdown: https://insights.sbomify.com/CVE-2026-21716/index.md)","id":"CVE-2026-21716","markdown":"https://insights.sbomify.com/CVE-2026-21716/index.md","name":"CVE-2026-21716","record":{"aliases":["ALPINE-CVE-2026-21716","AZL-81236","AZL-81254","BELL-CVE-2026-21716","BIT-node-2026-21716","BIT-node-min-2026-21716","CLEANSTART-2026-JO53720","DEBIAN-CVE-2026-21716","GHSA-22vj-v4r3-878v","MINI-2rff-xj2m-crvv","MINI-5h9w-wqhw-862q","MINI-c3g6-jq7j-4r3h","MINI-frq3-84rv-2mhv","MINI-gv9f-9gp6-rwmj","MINI-hp5w-5g67-25c3","MINI-q7xg-h7f6-v6q3","UBUNTU-CVE-2026-21716"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Node.js runtime","requires_auth":"low_privilege","summary":"Attackers can bypass Node.js permission model restrictions to modify file permissions and ownership via promise-based FileHandle methods.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"node.js","vendor":"nodejs"}],"cvss":{"score":3.3,"severity":"low","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"An incomplete fix for CVE-2024-36137 leaves `FileHandle.chmod()` and `FileHandle.chown()` in the promises API without the required permission checks, while their callback-based equivalents (`fs.fchmod()`, `fs.fchown()`) were correctly patched.\r\n\r\nAs a result, code running under `--permission` with restricted `--allow-fs-write` can still use promise-based `FileHandle` methods to modify file permissions and ownership on already-open file descriptors, bypassing the intended write restrictions.\r\n\r\nThis vulnerability affects **20.x, 22.x, 24.x, and 25.x** processes using the Permission Model where `--allow-fs-write` is intentionally restricted.","ecosystems":["Bitnami"],"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":"Security feature bypass in node","id":"CVE-2026-21716","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"nodejs:node.js","products":["nodejs:node.js"],"type":"security_feature_bypass","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Denial of service in node","id":"CVE-2026-21717"},"packages":[{"ecosystem":"Bitnami","fixed":["20.20.2","22.22.2","24.14.1","25.8.2"],"introduced":["0","21.0.0","23.0.0","25.0.0"],"last_affected":[],"package":"node","purl":"pkg:bitnami/node","source":"BIT-node-2026-21716"},{"ecosystem":"Bitnami","fixed":["20.20.2","22.22.2","24.14.1","25.8.2"],"introduced":["0","21.0.0","23.0.0","25.0.0"],"last_affected":[],"package":"node-min","purl":"pkg:bitnami/node-min","source":"BIT-node-min-2026-21716"}],"prev":{"headline":"Missing authorization in node","id":"CVE-2026-21715"},"products":["node"],"published":"2026-03-30","related":[{"cvss_score":9.8,"headline":"Security feature bypass in Node","id":"CVE-2023-32002","kev_date_added":null,"published":"2023-08-21"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2016-6303","kev_date_added":null,"published":"2016-09-16"},{"cvss_score":9.1,"headline":"Security feature bypass in Node.js","id":"CVE-2017-15896","kev_date_added":null,"published":"2017-12-11"},{"cvss_score":8.8,"headline":"Server-side request forgery in Node.js","id":"CVE-2018-7160","kev_date_added":null,"published":"2018-05-17"},{"cvss_score":8.1,"headline":"Misconfiguration in Node.js","id":"CVE-2018-12120","kev_date_added":null,"published":"2018-11-28"},{"cvss_score":7.9,"headline":"Path traversal in Node","id":"CVE-2024-21891","kev_date_added":null,"published":"2024-02-20"},{"cvss_score":7.9,"headline":"Path traversal in Node","id":"CVE-2024-21896","kev_date_added":null,"published":"2024-02-20"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"2026-03-31","vendors":["nodejs"]},"summary":"Attackers can bypass Node.js permission model restrictions to modify file permissions and ownership via promise-based FileHandle methods.","url":"https://insights.sbomify.com/CVE-2026-21716/"}