{"id":"CVE-2026-107335","title":"Malcolm's upload-processing pipeline (scripts/safe-extract.py) enforces entry-count, nesting-depth, and total-uncompressed-byte limits when extracting container archives (zip/tar/rar/7z via libarchive), but those limits are not applied w…","summary":"Malcolm's upload-processing pipeline (scripts/safe-extract.py) enforces entry-count, nesting-depth, and total-uncompressed-byte limits when extracting container archives (zip/tar/rar/7z via libarchive), but those limits are not applied w…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-409"],"vendor":"CISA","product":"Malcolm","affected":["Malcolm <= 26.07.1"],"published":"2026-10-08","updated":"2026-10-13","sourceUpdated":"2026-10-13T17:17:16.610","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107335","references":[{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-280-01.json","label":"ics-cert@hq.dhs.gov"},{"url":"https://github.com/cisagov/Malcolm/security/advisories/GHSA-f2v6-8cj4-mhr6","label":"ics-cert@hq.dhs.gov"},{"url":"https://github.com/cisagov/Malcolm/security/advisories/GHSA-jr6p-63pg-hr6g","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00456,"epssPercentile":0.39423,"ingestedAt":"2026-10-08T17:56:11.737Z","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-08T19:05:10.578499Z"},"slug":"CVE-2026-107335","body":"## Overview\n\nMalcolm's upload-processing pipeline (scripts/safe-extract.py) enforces entry-count, nesting-depth, and total-uncompressed-byte limits when extracting container archives (zip/tar/rar/7z via libarchive), but those limits are not applied when the uploaded file is a single-stream compressed format (.gz, .bz2, .xz, .lzma, .lz) that isn't a .tar.*-style archive. Any authenticated user permitted to upload PCAP/log files can upload a small, highly compressible file (e.g. a gzip bomb) that decompresses to an effectively unbounded size on disk, exhausting the shared Docker volume used by OpenSearch, Logstash, Arkime, and Zeek, and disrupting the platform for all users.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":221881,"id":"CVE-2026-107335","ts":1792035891512,"field":"exploit_available","old":"false","new":"true"}]}