Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, `safe-extract.py` extracts uploaded archives with no limit on entry count, directory depth, total entries, or output size. A small malicious archive containing a large number of directory or file entries causes the filebeat processing container to create an unbounded number of filesystem objects, exhausting inodes or filesystem metadata and denying service to the processing pipeline and any service sharing the same mount. Version 26.07.0 fixes the issue.
Advisories

No advisories yet.

Fixes

Solution

Malcolm version 26.07.0 addresses these issues. For more information, seeĀ  https://github.com/cisagov/Malcolm/pull/1043


Workaround

No workaround given by the vendor.

History

Fri, 02 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Thu, 13 Aug 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Cisagov
Cisagov malcolm
Vendors & Products Cisagov
Cisagov malcolm

Wed, 12 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 11 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
Description Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, `safe-extract.py` extracts uploaded archives with no limit on entry count, directory depth, total entries, or output size. A small malicious archive containing a large number of directory or file entries causes the filebeat processing container to create an unbounded number of filesystem objects, exhausting inodes or filesystem metadata and denying service to the processing pipeline and any service sharing the same mount. Version 26.07.0 fixes the issue.
Title Malcolm has Uncontrolled Resource Consumption in Archive Extraction (Inode-Exhaustion DoS)
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-02T20:15:36.885Z

Reserved: 2026-07-15T16:54:55.817Z

Link: CVE-2026-63133

cve-icon Vulnrichment

Updated: 2026-08-12T13:01:26.615Z

cve-icon NVD

Status : Deferred

Published: 2026-08-11T21:17:44.167

Modified: 2026-10-02T21:16:55.797

Link: CVE-2026-63133

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-02T21:30:18Z

Weaknesses