A vulnerability was determined in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::compounddocument::readdirectory of the file source/detail/cryptography/compound_document.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to out-of-bounds read. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 147. Applying a patch is advised to resolve this issue.
{
"cwe_ids": [
"CWE-119",
"CWE-125"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3664.json",
"cna_assigner": "VulDB"
}{
"cpe": "cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*",
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
],
"extracted_events": [
{
"introduced": "1.6.0"
},
{
"last_affected": "1.6.0"
},
{
"introduced": "1.6.1"
},
{
"last_affected": "1.6.1"
},
{
"introduced": "0"
}
]
}