CVE-2026-1386mediumCWE-61

Arbitrary Host File Overwrite via Symlink in Firecracker Jailer

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 6epss 0.2%

probabilidade de exploração

0.2%top 91% das CVEs

exploração observada

nãonenhuma fonte reporta

A UNIX symbolic link following issue in the jailer component in Firecracker version v1.13.1 and earlier and 1.14.0 on Linux may allow a local host user with write access to the pre-created jailer directories to overwrite arbitrary host files via a symlink attack during the initialization copy at jailer startup, if the jailer is executed with root privileges. To mitigate this issue, users should upgrade to version v1.13.2 or 1.14.1 or above.

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H

Produtos afetados

AWS · Firecracker

Referências

https://aws.amazon.com/security/security-bulletins/2026-003-AWS/https://github.com/firecracker-microvm/firecracker/releases/tag/v1.13.2 https://github.com/firecracker-microvm/firecracker/releases/tag/v1.14.1 https://github.com/firecracker-microvm/firecracker/security/advisories/GHSA-36j2-f825-qvgc