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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.8

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
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

Configurations

No configuration.

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) proot-distro es una utilidad para gestionar contenedores proot. Antes de la versión 5.1.5, proot-distro install extraía sistemas de archivos raíz de tarballs planos a través de _extract_plain_tar() en proot_distro/commands/install.py y capas de Docker a través de _apply_layer() en proot_distro/helpers/docker.py sin validar los destinos de enlaces simbólicos controlados por el archivo en member.linkname, permitiendo que un archivo malicioso plantara un enlace simbólico de ruta absoluta del host y escribiera archivos a través de él en el sistema de archivos del host. Este problema se solucionó en la versión 5.1.5.

Information

Published : 2026-07-29 17:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-54574

Mitre link : CVE-2026-54574

CVE.ORG link : CVE-2026-54574

JSON object : View

Products Affected

No product.

CWE

CWE-61

UNIX Symbolic Link (Symlink) Following

{"id": "CVE-2026-54574", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54574", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-29T19:13:59.275417Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.8, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "termux", "product": "proot-distro", "versions": [{"status": "affected", "version": "< 5.1.5"}]}]}], "published": "2026-07-29T17:16:52.743", "references": [{"url": "https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1c0ae45", "source": "security-advisories@github.com"}, {"url": "https://github.com/termux/proot-distro/releases/tag/v5.1.5", "source": "security-advisories@github.com"}, {"url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7", "source": "security-advisories@github.com"}, {"url": "https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-61"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "proot-distro es una utilidad para gestionar contenedores proot. Antes de la versi\u00f3n 5.1.5, proot-distro install extra\u00eda sistemas de archivos ra\u00edz de tarballs planos a trav\u00e9s de _extract_plain_tar() en proot_distro/commands/install.py y capas de Docker a trav\u00e9s de _apply_layer() en proot_distro/helpers/docker.py sin validar los destinos de enlaces simb\u00f3licos controlados por el archivo en member.linkname, permitiendo que un archivo malicioso plantara un enlace simb\u00f3lico de ruta absoluta del host y escribiera archivos a trav\u00e9s de \u00e9l en el sistema de archivos del host. Este problema se solucion\u00f3 en la versi\u00f3n 5.1.5."}], "lastModified": "2026-10-24T13:10:00.147", "sourceIdentifier": "security-advisories@github.com"}