Viper viper can not find my config file correctly

Preflight Checklist

[x] I have searched the issue tracker for an issue that matches the one I want to file, without success.
[x] I am not looking for support or already pursued the available support channels without success.
[x] I have checked the troubleshooting guide for my problem, without success.

Viper Version

1.19.0

Go Version

1.24

Config Source

Files

Format

YAML

Repl.it link

No response

Code reproducing the issue

viper.SetConfigName("agent")
viper.SetConfigType("yaml")
viper.AddConfigPath(".")
viper.AddConfigPath("/config/path")
if err := viper.ReadInConfig(); err != nil {
    return err
}

Expected Behavior

viper can find my config file /config/path/agent.yaml successfully

Actual Behavior

an error occurred: While parsing config: yaml: control characters are not allowed

Steps To Reproduce

I have a command tool called agent, and a config file /config/path/agent.yaml 1. use viper to load config file as code shown above 2. start it by running ./agent 3. an error occurred

Additional Information

My binary called agent, and my config file called agent.yaml, viper does not search the config file in the secondary path /config/path, instead, it treats the binary agent as a config file and try to parse it

related to https://github.com/spf13/viper/issues/1988