CVE-2026-54574
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.2 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
- EPSS
- 0.14% probability · 4th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-61
- Source
- security-advisories@github.com
References
- https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45
- https://github.com/termux/proot-distro/releases/tag/v5.1.5
- https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7
- https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.