{"schema":"threatline.record/2","record":{"id":"CVE-2026-111126","aliases":[],"summary":"catdoc through 0.95 Out-of-Bounds Read in xls2csv MULRK Record Handler","details":"catdoc through 0.95 contains an out-of-bounds read vulnerability in the MULRK record handler of process_item() in src/xlsparse.c that allows attackers to read past the static rec buffer via a crafted end column. Attackers can supply a crafted .xls workbook or BIFF stream with a large endcol to xls2csv to disclose adjacent process memory as CSV cells or crash the process.","categories":["Unclassified"],"product":"catdoc","vendor":"catdoc","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111126","source_modified_at":"2026-10-15T19:54:23.491Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"catdoc","vendor":"catdoc","versions":[{"version":"0","lessThanOrEqual":"0.95","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.002,"percentile":0.09407,"score_date":"2026-10-23"},"published_at":"2026-10-15T18:57:22.717Z","modified_at":"2026-10-15T19:54:23.491Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111126","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T19:54:23.491Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111126","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-endcol-and-string-count-oob-read","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/vbwagner/catdoc/blob/38a2807d22ce1a08bc39b94e9072a9f8f52cd86f/src/xlsparse.c#L314-L328","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/vbwagner/catdoc","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/catdoc-through-0.95-out-of-bounds-read-in-xls2csv-mulrk-record-handler","tags":["third-party-advisory"]}],"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":"2026-10-15T19:53:46.325067Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T19:54:23.491Z","content_hash":"663c4b4cde5d1152b1255e0c2dbcb9bc6910c95ba59fde963e332f96ec4b837a"}}