> CVE-2026-54574 [HIGH]

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PUBLISHED
2026-07-29 17:16
MODIFIED
2026-07-29 17:16
CVSS_SCORE V3
8.2
EPSS (Prob. Exploit)
0.21%
Top 88.2%
DATA SOURCES:
NVD đź”— 2026-07-29 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 GITHUB đź”— 2026-10-29 OSV đź”— 2026-11-02

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
EXPLOITABILITY
1.8
IMPACT
5.8

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-61

> CWE DETAILED DESCRIPTIONS

CWE-61: UNIX Symbolic Link (Symlink) Following - The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

> GITHUB SECURITY ADVISORY

GHSA-9xq3-3fqg-4vg7 HIGH

`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive

AFFECTED PACKAGES:
PIP / proot-distro
<= 5.1.4
Fixed in: 5.1.5

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive

AFFECTED PACKAGES:
Unknown / Unknown
158 versions affected
ALIASES:
GHSA-9xq3-3fqg-4vg7, PYSEC-2026-3608

> HISTORIQUE DES MODIFICATIONS

Première apparition
29/07/2026 17:16
Source: NVD
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-61: UNIX Symbolic Link (Symlink) Following - The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of ...
Total des modifications: 1 Dernière mise à jour: 3 months ago

> REFERENCES

https://github.com/termux/proot-distro/commit/a96d7a9667f38e45d812614852ee3915d1...
https://github.com/termux/proot-distro/releases/tag/v5.1.5
https://github.com/termux/proot-distro/security/advisories/GHSA-9xq3-3fqg-4vg7
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