{"id":"CVE-2021-32840","details":"SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Prior to version 1.3.3, a TAR file entry `../evil.txt` may be extracted in the parent directory of `destFolder`. This leads to arbitrary file write that may lead to code execution. The vulnerability was patched in version 1.3.3.","aliases":["GHSA-m22m-h4rf-pwq3"],"modified":"2026-03-14T10:58:52.155697Z","published":"2022-01-26T21:15:13.097Z","references":[{"type":"ADVISORY","url":"https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3"},{"type":"FIX","url":"https://github.com/icsharpcode/SharpZipLib/commit/a0e96de70b5264f4c919b09253b1522bc7a221cc"},{"type":"EVIDENCE","url":"https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/icsharpcode/sharpziplib","events":[{"introduced":"0"},{"fixed":"1b1ab013ce1df02d8f27cf582197759c614d9126"},{"fixed":"a0e96de70b5264f4c919b09253b1522bc7a221cc"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.3.3"}]}}],"versions":["0.84.0.0","0.85.0.0","0.85.1.271","0.85.2.329","0.85.3.365","0.85.4.369","0.85.5.452","0.86.0.518","v1.0.0","v1.0.0-rc1","v1.0.0-rc2","v1.1.0","v1.2.0","v1.3.0","v1.3.1","v1.3.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32840.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}