CVE-2026-111126 (GCVE-0-2026-111126)
Vulnerability from cvelistv5 – Published: 2026-10-15 18:57 – Updated: 2026-10-15 19:54
VLAI
EPSS
VEX
Title
catdoc through 0.95 Out-of-Bounds Read in xls2csv MULRK Record Handler
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:53 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-end… | technical-description |
| https://github.com/vbwagner/catdoc/blob/38a2807d2… | technical-description |
| https://github.com/vbwagner/catdoc | product |
| https://www.vulncheck.com/advisories/catdoc-throu… | third-party-advisory |
Impacted products
Date Public
2026-10-15 00:00
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