Bug 2484548 (CVE-2026-26824) - CVE-2026-26824 libxls: libxls: Information disclosure via crafted XLS file processing
Summary: CVE-2026-26824 libxls: libxls: Information disclosure via crafted XLS file pr...
Keywords:
Status: NEW
Alias: CVE-2026-26824
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2484566
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-03 21:01 UTC by OSIDB Bzimport
Modified: 2026-06-03 22:32 UTC (History)
0 users

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

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-06-03 21:01:34 UTC 
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
Note You need to log in before you can comment on or make changes to this bug.