{"id":"CVE-2026-53486","aliases":["GHSA-mp2f-45pm-3cg9"],"url":"https://o3.security/vulnerability/CVE-2026-53486","summary":"decompress: Archive extraction can create files and links outside the target directory","details":"The decompress package for Node.js extracts archives. Prior to 10.2.1 and 11.1.3, archive extraction can create files and links outside the target directory. When extracting an archive to a directory, a crafted archive can read or write files outside that directory because hardlink and symlink entries are created without checking where targets point, path containment used a string prefix comparison, and file modes failed to remove setuid, setgid, or sticky bits. This issue is fixed in @xhmikosr/decompress versions 10.2.1 and 11.1.3.","published":"2026-07-14T20:07:14.190Z","modified":"2026-08-12T03:51:16.764570625Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.00749,"percentile":0.52387,"asOf":"2026-08-30"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@xhmikosr/decompress","fixedVersion":"10.2.1"},{"ecosystem":"npm","name":"@xhmikosr/decompress","fixedVersion":"11.1.3"},{"ecosystem":"npm","name":"decompress","fixedVersion":null}],"fix":{"url":"https://github.com/XhmikosR/decompress/commit/281cefa00cd4275c10479bc5f1abba6b14dee8bd","label":"XhmikosR/decompress@281cefa"},"references":[{"type":"WEB","url":"https://github.com/XhmikosR/decompress/releases/tag/v10.2.1"},{"type":"WEB","url":"https://github.com/XhmikosR/decompress/releases/tag/v11.1.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53486.json"},{"type":"ADVISORY","url":"https://github.com/XhmikosR/decompress/security/advisories/GHSA-mp2f-45pm-3cg9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53486"},{"type":"FIX","url":"https://github.com/XhmikosR/decompress/commit/281cefa00cd4275c10479bc5f1abba6b14dee8bd"},{"type":"FIX","url":"https://github.com/XhmikosR/decompress/commit/60b5299402e72b0b53ca2e55222e9a1ccb44afae"},{"type":"FIX","url":"https://github.com/XhmikosR/decompress/commit/9fcda4b0a66ca22dc8d337f9b0e7c30293c5fb89"},{"type":"FIX","url":"https://github.com/XhmikosR/decompress/commit/aca5aac415dc04a6fae5200e51368cff436a09dd"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:16.764570625Z"}}