Vulnerability in Termux Proot-Distro
CVE-2026-54574
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.
EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
Affected products
- Termux Proot-distro — versions < 5.1.5
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-54574?
- CVE-2026-54574 is a high-severity vulnerability in Termux Proot-Distro, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 8.2/10. Published 2026-07-29.
- How severe is CVE-2026-54574?
- High severity. CVSS v3 base score is 8.2 out of 10.