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
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| n/a | n/a | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://github.com/libxls/libxls/issues/155 |
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History
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 |
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Projects
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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
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OpenCVE Enrichment
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Weaknesses
No weakness.