Low severity3.3NVD Advisory· Published Feb 19, 2026· Updated Apr 29, 2026
CVE-2026-2703
CVE-2026-2703
Description
A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to off-by-one. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This patch is called f2d7bf494e5c52706843cf7eb9892821bffb0734. Applying a patch is advised to resolve this issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
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/xlnt-community/xlnt/commit/f2d7bf494e5c52706843cf7eb9892821bffb0734nvdPatch
- github.com/oneafter/0128/blob/main/xl1/repronvdExploit
- github.com/xlnt-community/xlnt/issues/137nvdExploitIssue TrackingVendor Advisory
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdPermissions RequiredVDB Entry
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