Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.3, Kiota is affected by a code-generation injection vulnerability in the C# XML documentation-comment sink (the description, externalDocs label, and externalDocs link fields emitted as /// … comments). When text from an OpenAPI description is written into single-line XML doc comments without stripping newline and Unicode line-terminator characters, an attacker can break out of the /// comment line and inject additional code into generated C# clients. This issue is fixed in version 1.29.1 and 1.32.3.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-94"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59860.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "1.30.0"
},
{
"fixed": "1.31.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.29.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "ebb632db90aa8e3c20949337d9faa2720d64ca44"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v1.32.3",
"range": [
{
"fixed": "60b1f80ccce5e113a375c675a123221b391b3613"
}
],
"source": "REFERENCES_TAG"
}
]
}