{"schema":"threatline.record/2","record":{"id":"CVE-2026-107335","aliases":["GHSA-f2v6-8cj4-mhr6","GHSA-jr6p-63pg-hr6g"],"summary":"Improper Handling of Highly Compressed Data in Malcolm","details":"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.","categories":["Unclassified"],"product":"Malcolm","vendor":"CISA","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107335","source_modified_at":"2026-10-14T19:36:54.743Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Malcolm","vendor":"CISA","versions":[{"status":"affected","version":"0","lessThanOrEqual":"26.07.1","versionType":"custom"},{"status":"unaffected","version":"26.08.0"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00456,"percentile":0.38641,"score_date":"2026-10-23"},"published_at":"2026-10-08T17:30:12.206Z","modified_at":"2026-10-14T19:36:54.743Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107335","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T19:36:54.743Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107335","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/cisagov/Malcolm/security/advisories/GHSA-f2v6-8cj4-mhr6"},{"source":"CVE List","url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-280-01.json","tags":["government-resource"]},{"source":"CVE List","url":"https://github.com/cisagov/Malcolm/security/advisories/GHSA-jr6p-63pg-hr6g","tags":["exploit"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-08T19:05:10.578499Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T19:36:54.743Z","content_hash":"2d5ba15f1b869c79213477fccc0c7db030f194fe7d5743fe0bbf06dec5767823"}}