{"id":"CVE-2026-54574","summary":"`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive","details":"proot-distro is a utility for managing proot containers. Prior to version 5.1.5, proot-distro install extracted plain tarball root filesystems through _extract_plain_tar() in proot_distro/commands/install.py and Docker layers through _apply_layer() in proot_distro/helpers/docker.py without validating archive-controlled symlink targets in member.linkname, allowing a malicious archive to plant an absolute host-path symlink and write files through it onto the host filesystem. This issue is fixed in version 5.1.5.","aliases":["GHSA-9xq3-3fqg-4vg7"],"modified":"2026-07-31T03:49:05.174724117Z","published":"2026-07-29T16:32:15.576Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54574.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-61"]},"references":[{"type":"WEB","url":"https://github.com/termux/proot-distro/releases/tag/v5.1.5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54574.json"},{"type":"ADVISORY","url":"https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54574"},{"type":"FIX","url":"https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/termux/proot-distro","events":[{"introduced":"0"},{"fixed":"a96d7a9667f38e45d812614852ee3915d1c0ae45"},{"fixed":"d6dff97aee4736e5940820c832866feb48c82428"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"5.1.5"}]}}],"versions":["v5.1.4","v5.1.3","v5.1.2","v5.1.1","v5.1.0","v5.0.2","v5.0.1","v5.0.0","v5.0.0b5","v5.0.0b4","v5.0.0b3","v5.0.0b2","v4.38.0","v4.37.0","v4.36.0","v4.35.0","v4.34.2","v4.34.1","v4.34.0","v4.33.2","v4.33.1","v4.33.0","v4.32.0","v4.31.0","v4.30.1","v4.30.0","v4.29.0","v4.28.0","v4.27.0","v4.26.0","v4.25.0","v4.24.0","v4.23.0","v4.22.1","v4.22.0","v4.21.0","v4.20.0","v4.19.0","v4.18.0","v4.17.3","v4.17.2","v4.17.1","v4.17.0","v4.16.0","v4.15.0","v4.14.1","v4.14.0","v4.13.0","v4.12.0","v4.11.0","v4.10.0","v4.9.0","v4.8.0","v4.7.0","v4.6.0","v4.5.0","v4.4.0","v4.3.1","v4.3.0","v4.2.0","v4.1.0","v4.0.2","v4.0.1","v4.0.0","v3.18.1","v3.18.0","v3.17.0","v3.16.0","v3.15.2","v3.15.1","v3.15.0","v3.14.0","v3.13.0","v3.12.1","v3.12.0","v3.11.0","v3.10.0","v3.9.1","v3.9.0","v3.8.0","v3.7.0","v3.6.1","v3.6.0","v3.5.1","v3.5.0","v3.4.0","v3.3.0","v3.2.1","v3.2.0","v3.1.2","v3.1.1","v3.1.0","v3.0.2","v3.0.1","v3.0.0","v2.9.5","v2.9.4","v2.9.3","v2.9.2","v2.9.1","v2.9.0","v2.8.0","v2.7.0","v2.6.9","v2.6.8","v2.6.7","v2.6.6","v2.6.5","v2.6.4","v2.6.3","v2.6.2","v2.6.1","v2.6.0","v2.5.0","v2.4.0","v2.3.1","v2.3.0","v2.2.0","v2.1.1","v2.1.0","v2.0.1","v2.0.0","v1.10.1","v1.10.0","v1.9.0-updated-distributions","v1.9.0","v1.8.0","v1.7.0","v1.6.2","v1.6.1","v1.6.0","v1.5.0","v1.4.0-fedora-rootfs","v1.4.0-debian-rootfs","v1.4.0","v1.3.3","v1.3.2","v1.3.1","v1.3","v1.2-ubuntu-focal-rootfs","v1.2-ubuntu-bionic-rootfs","v1.2-arch-rootfs","v1.2-alpine-rootfs","v1.2","v1.1-debian-rootfs","v1.1","v1.0","v0.10","v0.9","v0.8","v0.7","v0.6","v0.5","v0.4","v0.3","v0.2.1","v0.2","v0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54574.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"}]}