CVE-2026-111126mediumCWE-125

CVE-2026-111126: medium-severity vulnerability in catdoc

catdoc through 0.95 Out-of-Bounds Read in xls2csv MULRK Record Handler

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.2%
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.
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
Affected products
catdoc · catdoc
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CVE-2024-52035HIGHCVE-2024-52035EPSS 0.3%CVE-2024-54028HIGHCVE-2024-54028EPSS 0.3%CVE-2026-111127MEDIUMcatdoc through 0.95 Out-of-Bounds Read via xls2csv copy_unicode_stringEPSS 0.1%