/usr/share/perl5/Net/OAuth/ is in libnet-oauth-perl 0.28-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Net/OAuth/AccessToken.pm
/usr/share/perl5/Net/OAuth/AccessTokenRequest.pm
/usr/share/perl5/Net/OAuth/AccessTokenResponse.pm
/usr/share/perl5/Net/OAuth/Client.pm
/usr/share/perl5/Net/OAuth/ConsumerRequest.pm
/usr/share/perl5/Net/OAuth/Message.pm
/usr/share/perl5/Net/OAuth/ProtectedResourceRequest.pm
/usr/share/perl5/Net/OAuth/Request.pm
/usr/share/perl5/Net/OAuth/RequestTokenRequest.pm
/usr/share/perl5/Net/OAuth/RequestTokenResponse.pm
/usr/share/perl5/Net/OAuth/Response.pm
/usr/share/perl5/Net/OAuth/SignatureMethod/
/usr/share/perl5/Net/OAuth/SignatureMethod/HMAC_SHA1.pm
/usr/share/perl5/Net/OAuth/SignatureMethod/HMAC_SHA256.pm
/usr/share/perl5/Net/OAuth/SignatureMethod/PLAINTEXT.pm
/usr/share/perl5/Net/OAuth/SignatureMethod/RSA_SHA1.pm
/usr/share/perl5/Net/OAuth/UserAuthRequest.pm
/usr/share/perl5/Net/OAuth/UserAuthResponse.pm
/usr/share/perl5/Net/OAuth/V1_0A/
/usr/share/perl5/Net/OAuth/V1_0A/AccessTokenRequest.pm
/usr/share/perl5/Net/OAuth/V1_0A/RequestTokenRequest.pm
/usr/share/perl5/Net/OAuth/V1_0A/RequestTokenResponse.pm
/usr/share/perl5/Net/OAuth/V1_0A/UserAuthResponse.pm
/usr/share/perl5/Net/OAuth/XauthAccessTokenRequest.pm
/usr/share/perl5/Net/OAuth/YahooAccessTokenRefreshRequest.pm