Answer in brief
CVE-2026-129490 records a Medium severity (CVSS 6.8) vulnerability in littlefs through 2.11.3 Type Confusion in lfs_dir_traverse via lfs_migrate. The current sources do not mark it as known exploited. The current feed maps littlefs-project/littlefs (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps littlefs-project/littlefs (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| littlefs-project/littlefsgeneric | >=0 <=2.11.3 | Not reported |
Published upstream
Nov 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.