{"action":"Upgrade tar to 4.4.18 or later.","affected":[{"fixed":"4.4.18","introduced":"3.0.0"},{"fixed":"5.0.10","introduced":"5.0.0"},{"fixed":"6.1.9","introduced":"6.0.0"}],"component":"tar","cve_ids":["CVE-2021-37712"],"ecosystem":"npm","epss":0.01865,"exploited":false,"fixed_versions":["4.4.18","5.0.10","6.1.9"],"ghsa_id":"GHSA-qq89-hq3f-393p","id":"tcs_01M5KG6TFRG7VJFY4M4XTC3X0H","modified_at":"2026-07-08T06:28:24.989628894Z","published_at":"2021-08-31T16:05:17Z","references":["https://osv.dev/vulnerability/GHSA-qq89-hq3f-393p","https://github.com/npm/node-tar/security/advisories/GHSA-qq89-hq3f-393p","https://nvd.nist.gov/vuln/detail/CVE-2021-37712","https://github.com/isaacs/node-tar/commit/1739408d3122af897caefd09662bce2ea477533b","https://github.com/isaacs/node-tar/commit/2f1bca027286c23e110b8dfc7efc10756fa3db5a","https://github.com/isaacs/node-tar/commit/3aaf19b2501bbddb145d92b3322c80dcaed3c35f","https://github.com/isaacs/node-tar/commit/b6162c7fafe797f856564ef37f4b82747f051455","https://github.com/isaacs/node-tar/commit/bb93ba243746f705092905da1955ac3b0509ba1e","https://github.com/isaacs/node-tar/commit/d56f790bda9fea807dd80c5083f24771dbdd6eb1","https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","https://github.com/npm/node-tar","https://lists.debian.org/debian-lts-announce/2022/12/msg00023.html","https://www.debian.org/security/2021/dsa-5008","https://www.npmjs.com/package/tar","https://www.oracle.com/security-alerts/cpuoct2021.html"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"GHSA-qq89-hq3f-393p","url":"https://osv.dev/vulnerability/GHSA-qq89-hq3f-393p"}],"summary":"Arbitrary File Creation/Overwrite via insufficient symlink protection due to directory cache poisoning using symbolic links"}