CVE-2026-120453
The Sleuth Kit through 4.15.0 Heap Out-of-Bounds Read via HFS+ decmpfs Header
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| The Sleuth Kit The Sleuth Kit sleuthkit/sleuthkit
github |
≥ 0; ≤ 4.15.0 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 4.8 medium |
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 3.3 low |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L | CNA: VulnCheck |
Exploit evidence
- https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-read
exploit · ADP: CISA-ADP
References
- https://github.com/sleuthkit/sleuthkit/issues/3583CNA: VulnCheck · issue-tracking
- https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.15.0/tsk/fs/hfs.c#L4249-L4318CNA: VulnCheck · technical-description
- https://github.com/sleuthkit/sleuthkit/releases/tag/sleuthkit-4.15.0CNA: VulnCheck · release-notes
- https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-readCNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/the-sleuth-kit-through-4.15.0-heap-out-of-bounds-read-via-hfs-decmpfs-headerCNA: VulnCheck · third-party-advisory
- https://hackmd.io/@haindpwn/sleuthkit-hfs-decmpfs-attr-oob-readADP: CISA-ADP · exploit
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