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PUBLISHED

2026-02-04 20:16

MODIFIED

2026-02-04 20:16

CVSS_SCORE V3

8.2

EPSS (Prob. Exploit)

0.19%

Top 91.9%

DATA SOURCES:

NVD 🔗 2026-02-04 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-10-28 OSV 🔗 2026-02-10

> DESCRIPTION

melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.

> 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:N/I:H/A:H

EXPLOITABILITY

1.8

IMPACT

5.8

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
            

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	None (N)	Aucune divulgation d'informations
I (Impact Intégrité) Integrity Impact	High (H)	Modification totale des données possible
A (Impact Disponibilité) Availability Impact	High (H)	Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité

None

Aucune divulgation d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

High

Interruption totale du service possible

> WEAKNESSES

CWE-22

> CWE DETAILED DESCRIPTIONS

CWE-22: Improper Limitation of a Pathname to a Restricted Directory - The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

> GITHUB SECURITY ADVISORY

GHSA-qxx2-7h4c-83f4 HIGH

melange QEMU runner could write files outside workspace directory

AFFECTED PACKAGES:

GO / chainguard.dev/melange

>= 0.11.3, < 0.40.3

Fixed in: 0.40.3

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

melange QEMU runner could write files outside workspace directory

AFFECTED PACKAGES:

Unknown / Unknown

153 versions affected

ALIASES:

GHSA-qxx2-7h4c-83f4, GO-2026-4407

> HISTORIQUE DES MODIFICATIONS

Première apparition

04/02/2026 20:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:58

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that i...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/03/2026 06:46

CWE