{"cve":"CVE-2026-23745","nvd":{"published":"2026-01-16T22:16:26.830","modified":"2026-09-07T13:18:15.473","status":"Modified","description":"node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N","score":8.2},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","score":6.1},"cwes":["CWE-22"],"references":["https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e","https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97","https://access.redhat.com/errata/RHSA-2026:18480","https://access.redhat.com/errata/RHSA-2026:18868","https://access.redhat.com/errata/RHSA-2026:19712"],"products":["isaacs:tar"],"source":"nvd","synced_at":"2026-10-19T22:21:16.563232421+00:00"},"epss":{"cve":"CVE-2026-23745","score":0.00376,"percentile":0.31592,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8qq5-rm4j-mr97","url":"https://osv.dev/vulnerability/GHSA-8qq5-rm4j-mr97","summary":"node-tar is Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization","modified":"2026-09-10T03:50:59.009017334Z","packages":[{"ecosystem":"npm","name":"tar","purl":"pkg:npm/tar","ranges":["<7.5.3"],"fixed":["7.5.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}