Bug 2553702 (CVE-2026-111126) - CVE-2026-111126 catdoc: catdoc: Denial of Service via malformed Excel file
Summary: CVE-2026-111126 catdoc: catdoc: Denial of Service via malformed Excel file
Keywords:
Status: NEW
Alias: CVE-2026-111126
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2554036
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-15 19:08 UTC by OSIDB Bzimport
Modified: 2026-10-16 12:07 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-10-15 19:08:46 UTC 
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.
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