{"id":"CVE-2026-107335","revision":"0492b95972154f599de7672137f10580","records":[{"revision":"0492b95972154f599de7672137f10580","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107335","aliases":[],"title":"Improper Handling of Highly Compressed Data in Malcolm","description":"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 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.","state":0,"publishedAt":"2026-10-08T17:30:12.206+00:00","modifiedAt":"2026-10-14T19:36:54.743+00:00","affected":[{"ecosystem":"Vendor product","name":"Malcolm","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"CISA\",\n                    \"product\": \"Malcolm\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"26.07.1\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"26.08.0\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/cisagov/Malcolm/security/advisories/GHSA-f2v6-8cj4-mhr6","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-280-01.json"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107335","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107335","identifiers":["CVE-2026-107335"]},"retained":false,"historicalAffected":[]}],"coverage":[]}