NULL Pointer Dereference in Sleuth Kit Product by Open Source Community
CVE-2026-120454

6.8MEDIUM

Key Information:

Vendor

The Sleuth Kit

Status
The Sleuth Kit
Vendor
CVE Published:
2 November 2026

What is CVE-2026-120454?

The Sleuth Kit up to version 4.15.0 is vulnerable to a NULL pointer dereference in the decmpfs_decompress_lzvn_attr() function. This vulnerability can be exploited by attackers who supply a crafted HFS+ image containing a maliciously constructed LZVN inline com.apple.decmpfs attribute. When the decoder processes this incorrect input, it can lead to a failure in memory allocation, resulting in a crash of the tool during its operation, thus causing a denial of service. It's crucial for users of The Sleuth Kit to be aware of this risk and take necessary precautions.

Affected Version(s)

The Sleuth Kit 0 <= 4.15.0

References

https://github.com/sleuthkit/sleuthkit/issues/3583
issue-tracking
https://github.com/sleuthkit/sleuthkit/blob/sleuthkit-4.1...
technical-description
https://github.com/sleuthkit/sleuthkit/releases/tag/sleut...
release-notes

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

HaiND from the Post and Telecommunication Institute of Technology
.