CVE-2026-3663
4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| xlnt-community | xlnt | 1.6.0 | affected |
| xlnt-community | xlnt | 1.6.1 | affected |
Weaknesses
- CWE-125: Out-of-Bounds Read
- CWE-119: Memory Corruption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/?id.349552
- https://vuldb.com/?ctiid.349552
- https://vuldb.com/?submit.764644
- https://github.com/xlnt-community/xlnt/issues/139
- https://github.com/oneafter/0128/blob/main/xl3/repro
- https://github.com/xlnt-community/xlnt/pull/147
- https://github.com/xlnt-community/xlnt/
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