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.
History

Fri, 23 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 23 Jan 2026 20:45:00 +0000


Fri, 23 Jan 2026 20:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Arbitrary Host File Overwrite via Symlink in Firecracker Jailer
Weaknesses CWE-61
References
Metrics cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 6, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-01-23T20:38:50.592Z

Reserved: 2026-01-23T20:11:49.349Z

Link: CVE-2026-1386

cve-icon Vulnrichment

Updated: 2026-01-23T20:33:10.577Z

cve-icon NVD

Status : Received

Published: 2026-01-23T21:15:51.397

Modified: 2026-01-23T21:15:51.397

Link: CVE-2026-1386

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.