---
id: CVE-2026-120453
title: The Sleuth Kit through 4.15.0 Heap Out-of-Bounds Read via HFS+ decmpfs Header
summary: >-
  The Sleuth Kit through 4.15.0 contains a heap out-of-bounds read vulnerability
  in hfs_load_extended_attrs() in tsk/fs/hfs.c that reads the decmpfs header
  without checking attribute length. Attackers can supply a crafted HFS+ image
  with a…
severity: low
cvss: 3.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-125
vendor: The Sleuth Kit
product: The Sleuth Kit
affected:
  - the_sleuth_kit <= 4.15.0
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-02T15:44:16.255285Z'
exploitAvailable: true
published: '2026-11-02'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T15:44:48.397Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120453'
references:
  - url: 'https://github.com/sleuthkit/sleuthkit/issues/3583'
  - url: >-
      https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.15.0/tsk/fs/hfs.c#L4249-L4318
  - url: 'https://github.com/sleuthkit/sleuthkit/releases/tag/sleuthkit-4.15.0'
    label: The Sleuth Kit sleuthkit-4.15.0 Release Notes
  - url: 'https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-read'
  - url: >-
      https://www.vulncheck.com/advisories/the-sleuth-kit-through-4.15.0-heap-out-of-bounds-read-via-hfs-decmpfs-header
    label: >-
      VulnCheck Advisory: The Sleuth Kit through 4.15.0 Heap Out-of-Bounds Read
      via HFS+ decmpfs Header
tags:
  - cve.org
  - exploit-available
epss: 0.00231
epssPercentile: 0.14036
ingestedAt: '2026-11-05T19:30:42.694Z'
---

## Overview

The Sleuth Kit through 4.15.0 contains a heap out-of-bounds read vulnerability in hfs_load_extended_attrs() in tsk/fs/hfs.c that reads the decmpfs header without checking attribute length. Attackers can supply a crafted HFS+ image with a com.apple.decmpfs attr_size of 1 to 15 to read past the allocation and crash analysis tools like istat or icat.

## Affected

- `the_sleuth_kit <= 4.15.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.