Low severity3.3NVD Advisory· Published Mar 7, 2026· Updated Apr 29, 2026
CVE-2026-3663
CVE-2026-3663
Description
A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compound_document_istreambuf::xsgetn of the file source/detail/cryptography/compound_document.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. The attack is only possible with local access. The exploit has been made public and could be used. The patch is named 147. It is recommended to apply a patch to fix this issue.
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Affected products
2cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*range: <=1.6.1
- (no CPE)range: <=1.6.1
Patches
Vulnerability mechanics
References
6- github.com/oneafter/0128/blob/main/xl3/repronvdExploit
- github.com/xlnt-community/xlnt/issues/139nvdExploitIssue TrackingVendor Advisory
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdThird Party AdvisoryVDB Entry
- github.com/xlnt-community/xlnt/pull/147nvdIssue Tracking
- vuldb.comnvdPermissions RequiredVDB Entry
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