{"id":"JLSEC-2025-236","summary":"An improper link resolution flaw can occur while extracting an archive leading to changing modes,...","details":"An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.","modified":"2026-07-23T22:30:12.481866458Z","published":"2025-11-25T22:03:17.636Z","upstream":["CVE-2021-31566"],"database_specific":{"sources":[{"html_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31566","database_specific":{"status":"Modified"},"id":"CVE-2021-31566","imported":"2026-07-17T20:48:16.325Z","modified":"2026-06-17T03:52:00.643Z","published":"2022-08-23T16:15:09.337Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-31566"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2021-31566"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2024237"},{"type":"WEB","url":"https://github.com/libarchive/libarchive/commit/b41daecb5ccb4c8e3b2c53fd6147109fc12c3043"},{"type":"WEB","url":"https://github.com/libarchive/libarchive/issues/1566"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html"}],"affected":[{"package":{"name":"LibArchive_jll","ecosystem":"Julia","purl":"pkg:julia/LibArchive_jll?uuid=1e303b3e-d4db-56ce-88c4-91e52606a1a8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.5.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-236.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}