Test Id
Test 6231
Test Trace Id
36d2d5ec-5a96-424c-8d0a-193c695e8ba5
Timestamp
Tue, 23 Jun 2026 21:39:41 GMT
Scenario
Replace fields with values that will expand the byte representation when lowercased. Current field [password] [REPLACE with ȺȺȾȺȾȺȺȾȺȾ]
Expected Result
Should return [2XX|4XX]
Result
Result Details
The following keywords were detected in the response which might suggest an error details leak: [unauthorized]
Contract Path
Fuzzer
LowercaseExpandingBytesInStringFields
Full Request Path
Http Method
{
"password": "ȺȺȾȺȾȺȺȾȺȾ",
"username": "george.lupu"
}
[
{
"key": "Accept",
"value": "application/json"
},
{
"key": "Content-Type",
"value": "application/json"
},
{
"key": "User-Agent",
"value": "cats/13.8.1-SNAPSHOT (Test 6231 - LowercaseExpandingBytesInStringFields)"
},
{
"key": "X-Cats-Trace-Id",
"value": "36d2d5ec-5a96-424c-8d0a-193c695e8ba5"
}
]
curl -X POST \
-H "Accept: application/json" \
-H "Content-Type: application/json" \
-H "User-Agent: cats/13.8.1-SNAPSHOT (Test 6231 - LowercaseExpandingBytesInStringFields)" \
-H "X-Cats-Trace-Id: 36d2d5ec-5a96-424c-8d0a-193c695e8ba5" \
\
-d '{"password":"ȺȺȾȺȾȺȺȾȺȾ","username":"george.lupu"}' \
https://qa-api.puk3p.online/api/auth/login
{
"responseCode": 401,
"httpMethod": "POST",
"responseTimeInMs": "212",
"numberOfWordsInResponse": "4",
"numberOfLinesInResponse": "1",
"contentLengthInBytes": "172",
"jsonBody": {
"timestamp": "2026-06-23T21:39:41.236600406Z",
"status": 401,
"error": "Unauthorized",
"message": "Invalid username or password",
"path": "/api/auth/login",
"validationErrors": null
},
"headers": [
{
"key": "cache-control",
"value": "no-cache, no-store, max-age=0, must-revalidate"
},
{
"key": "content-type",
"value": "application/json"
},
{
"key": "date",
"value": "Tue, 23 Jun 2026 21:39:41 GMT"
},
{
"key": "expires",
"value": "0"
},
{
"key": "pragma",
"value": "no-cache"
},
{
"key": "server",
"value": "nginx/1.24.0 (Ubuntu)"
},
{
"key": "strict-transport-security",
"value": "max-age=31536000 ; includeSubDomains"
},
{
"key": "vary",
"value": "Origin"
},
{
"key": "x-content-type-options",
"value": "nosniff"
},
{
"key": "x-frame-options",
"value": "DENY"
},
{
"key": "x-xss-protection",
"value": "0"
}
],
"responseContentType": "application/json"
}
cats replay Test6231