PT-2026-6469 · Go · Chainguard.Dev/Melange

Publicado 2026-02-03 · Atualizado 2026-02-03

OSV

CVSS v3.1

8.2

Alta

Vetor base

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

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.

Fix: Fixed in 6e243d0d. Merged in release.

Acknowledgements

melange thanks Oleh Konko from 1seal for discovering and reporting this issue.

Correção

Path traversal

Enumeração de Fraquezas

CWE-22

Identificadores relacionados

GHSA-QXX2-7H4C-83F4

Produtos afetados

Chainguard.Dev/Melange

Referências · 5

• https://github.com/chainguard-dev/melange · Nota
• https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b · Nota
• https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-24843 · Nota de Segurança
• https://osv.dev/vulnerability/GHSA-qxx2-7h4c-83f4 · Aviso do Fabricante