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CVE-2026-120453

The Sleuth Kit through 4.15.0 Heap Out-of-Bounds Read via HFS+ decmpfs Header

4.8 Medium

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Passive

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.23%Unchanged since Nov 3, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.8

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.

Record
CVE-2026-120453
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness
CWE-125
Updated
2026-11-02
EUVDEUVD-2026-115213 4.8

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.

Record
EUVD-2026-115213
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-h27m-mw24-wfwv 4.8

The Sleuth Kit through 4.15.0 contains a heap out-of-bounds read vulnerability in...

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.

Record
GHSA-h27m-mw24-wfwv
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness
CWE-125
Updated
2026-11-02
NVD 4.8

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.

Record
CVE-2026-120453
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness
CWE-125
Updated
2026-11-03
OSV 4.8

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.

Record
CVE-2026-120453
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-125
Updated
2026-11-04
OSVDEBIAN-CVE-2026-120453 4.8

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.

Record
DEBIAN-CVE-2026-120453
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-07
OSVUBUNTU-CVE-2026-120453 4.8

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.

Record
UBUNTU-CVE-2026-120453
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Updated
2026-11-05
OSVAZL-112820 No score

CVE-2026-120453 affecting package sleuthkit 4.12.1-2

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.

Record
AZL-112820
Updated
2026-11-07

Affected products

Affected packages

Affected packages
PackageAffectedFixed
sleuthkit
Azure Linux:3
 through 4.12.1-2 None known
sleuthkit
Debian:12
 All versions, plus listed versions
4.11.1+dfsg-14.12.0+dfsg-14.12.1+dfsg-14.12.1+dfsg-1.14.12.1+dfsg-1.1~exp1
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4.12.1+dfsg-24.12.1+dfsg-34.14.0+dfsg-14.15.0+dfsg-1
 None known
sleuthkit
Debian:13
 All versions, plus listed versions
4.12.1+dfsg-34.14.0+dfsg-14.15.0+dfsg-1
 None known
sleuthkit
Debian:14
 All versions, plus listed versions
4.12.1+dfsg-34.14.0+dfsg-14.15.0+dfsg-1
 None known
sleuthkit
Ubuntu:Pro:14.04:LTS
 All versions, plus listed versions
3.2.3-2ubuntu13.2.3-2ubuntu23.2.3-2.13.2.3-2.23.2.3-2.2ubuntu0.1~esm1
 None known
sleuthkit
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
4.1.3-11ubuntu24.1.3-12ubuntu14.2.0-34.2.0-3ubuntu0.1~esm1
 None known
sleuthkit
Ubuntu:18.04:LTS
 All versions, plus listed versions
4.4.2-14.4.2-3
 None known
sleuthkit
Ubuntu:20.04:LTS
 All versions, plus listed versions
4.6.5-14.6.7-14.6.7-1build1
 None known
sleuthkit
Ubuntu:22.04:LTS
 All versions, plus listed versions
4.10.1+dfsg-14.11.0+dfsg-14.11.1+dfsg-1
 None known
sleuthkit
Ubuntu:24.04:LTS
 All versions, plus listed versions
4.12.0+dfsg-14.12.1+dfsg-14.12.1+dfsg-1.1ubuntu14.12.1+dfsg-1.1ubuntu2
 None known
sleuthkit
Ubuntu:26.10
 All versions, plus listed versions
4.12.1+dfsg-3build14.14.0+dfsg-1
 None known
sleuthkit
Ubuntu:26.04:LTS
 All versions, plus listed versions
4.12.1+dfsg-34.12.1+dfsg-3build1
 None known

History

History
RecordedChangedSources
affected, aliases, referencesOSV
affected, aliases, referencesOSV
affected, aliases, referencesOSV
factsEUVD, OSV
referencesNVD, OSV
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-120453 is a medium vulnerability (CVSS 4.8) in The Sleuth Kit Sleuth Kit, published November 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 14th percentile. No source names a fixed version.

References

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