Description
littlefs through 2.11.3, when built with LFS_MIGRATE, contains a type confusion vulnerability in lfs_dir_traverse() that treats a stack lfs_diskoff struct as an lfs_attr array. Attackers can supply a crafted littlefs v1 image whose metadata is read as LFS_FROM_USERATTRS during migration, causing out-of-bounds stack reads and process crashes.
Published: 2026-11-15
Score: 6.8 Medium
EPSS: n/a
KEV: No
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Remediation

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Advisories

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History

Sun, 15 Nov 2026 16:00:00 +0000

Type Values Removed Values Added
Description littlefs through 2.11.3, when built with LFS_MIGRATE, contains a type confusion vulnerability in lfs_dir_traverse() that treats a stack lfs_diskoff struct as an lfs_attr array. Attackers can supply a crafted littlefs v1 image whose metadata is read as LFS_FROM_USERATTRS during migration, causing out-of-bounds stack reads and process crashes.
Title littlefs through 2.11.3 Type Confusion in lfs_dir_traverse via lfs_migrate
Weaknesses CWE-843
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-15T15:51:19.031Z

Reserved: 2026-11-15T15:42:35.162Z

Link: CVE-2026-129490

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-15T16:16:56.620

Modified: 2026-11-15T16:16:56.620

Link: CVE-2026-129490

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-15T17:30:09Z

Weaknesses