CVE-2026-63133Malcolm has Uncontrolled Resource Consumption in Archive Extraction (Inode-Exhaustion DoS)
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Oct 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cisagov Malcolm cisagov:malcolm (from the name) | before 26.07.0; 26.07.0 not affected | CNA record |
References
- https://github.com/cisagov/Malcolm/security/advisories/GHSA-c35g-mgc3-95rxx-refsource-confirm
- https://github.com/cisagov/Malcolm/releases/tag/v26.07.0x-refsource-misc
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-230-01
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-230-01.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.