{"id":"CVE-2026-111126","revision":"b050b28269cd43b99b5030fc59b17c9b","records":[{"revision":"b050b28269cd43b99b5030fc59b17c9b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111126","aliases":[],"title":"catdoc through 0.95 Out-of-Bounds Read in xls2csv MULRK Record Handler","description":"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.","state":0,"publishedAt":"2026-10-15T18:57:22.717+00:00","modifiedAt":"2026-10-15T19:54:23.491+00:00","affected":[{"ecosystem":"https://github.com","name":"catdoc","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"catdoc\",\n                    \"product\": \"catdoc\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"0.95\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"collectionURL\": \"https://github.com\",\n                    \"packageURL\": \"pkg:github/vbwagner/catdoc\",\n                    \"repo\": \"https://github.com/vbwagner/catdoc\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","score":6.1,"severity":"MEDIUM"}],"references":["https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-endcol-and-string-count-oob-read","https://github.com/vbwagner/catdoc/blob/38a2807d22ce1a08bc39b94e9072a9f8f52cd86f/src/xlsparse.c#L314-L328","https://github.com/vbwagner/catdoc","https://www.vulncheck.com/advisories/catdoc-through-0.95-out-of-bounds-read-in-xls2csv-mulrk-record-handler"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111126","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111126","identifiers":["CVE-2026-111126"]},"retained":false,"historicalAffected":[]}],"coverage":[]}