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
Metrics
Affected Vendors & Products
No data.
No data.
No data.
OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.
| Vendors | Products |
|---|
References
| Link | Providers |
|---|---|
| https://github.com/libxls/libxls/issues/155 |
|
History
Wed, 03 Jun 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Uninitialized Memory Use in libxls OLE Parser Leading to Crash or Information Disclosure | |
| Weaknesses | CWE-457 |
Wed, 03 Jun 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | |
| References |
|
MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-06-03T20:00:34.060Z
Reserved: 2026-02-16T00:00:00.000Z
Link: CVE-2026-26824
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-06-03T20:16:18.677
Modified: 2026-06-03T20:16:18.677
Link: CVE-2026-26824
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-06-03T21:30:32Z