MEDIUM 6.9 NVD
CVE-2026-111126
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 p
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.
References
- https://github.com/vbwagner/catdoc
- https://github.com/vbwagner/catdoc/blob/38a2807d22ce1a08bc39b94e9072a9f8f52cd86f/src/xlspa
- https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-endcol-and-string-count-oob-read
- https://www.vulncheck.com/advisories/catdoc-through-0.95-out-of-bounds-read-in-xls2csv-mul
- https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-endcol-and-string-count-oob-read
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-15 via NVD.
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