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CVE

CVE-2026-3663

A vulnerability was found in xlnt-community xlnt up to 1.6.1.
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CVE

CVE-2026-3663

A vulnerability was found in xlnt-community xlnt up to 1.6.1.

A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compounddocumentistreambuf::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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
4.8
-
4.0
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/xlnt-community/xlnt/, https://vuldb.com/?id.349552, https://vuldb.com/?submit.764644, https://github.com/xlnt-community/xlnt/issues/139, https://github.com/xlnt-community/xlnt/pull/147, https://vuldb.com/?ctiid.349552, https://github.com/oneafter/0128/blob/main/xl3/repro

Severity

7.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.1
EPSS Probability
0.00026%
EPSS Percentile
0.07832%
Introduced Version
0
Fix Available

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