CVE-2026-26824
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/06/2026
Last modified:
03/06/2026
Description
libxls through version 1.6.3 contains a use of uninitialized memory vulnerability in the OLE container parser. Memory allocated for the Master Sector Allocation Table (MSAT) in read_MSAT() is not fully initialized before being consumed by ole2_validate_sector_chain(), which may result in application crashes or potential information disclosure when processing a crafted XLS file