CVE-2026-54574
HIGH`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7
X_Refsource_Misc x_refsource_misc
https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45
X_Refsource_Misc x_refsource_misc
https://github.com/termux/proot-distro/releases/tag/v5.1.5
Scores
CVSS v3
8.2
EPSS
0.0014
EPSS Percentile
4.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-61
Status
published
Products (2)
pypi/proot-distro
0 - 5.1.5PyPI
termux/proot-distro
< 5.1.5
Published
Jul 29, 2026
Tracked Since
Jul 29, 2026