CVE-2026-66901: Google::Auth 0 to before 0.09

Affected technology

Google::Auth · 0 to before 0.09
CJCOLLIER

Description’s affected range: versions before 0.09 for Perl

Component: Not specified by the source
Function: Google::Auth::ExternalAccountCredentials::retrieve_subject_token, Google::Auth::ExternalAccountCredentials::fetch_access_token, Google::Auth::ServiceAccountCredentials::fetch_access_token, Google::Auth::UserRefreshCredentials::fetch_access_token, Google::Auth::ImpersonatedServiceAccountCredentials::fetch_access_token
File: lib/Google/Auth/ExternalAccountCredentials.pm, lib/Google/Auth/ServiceAccountCredentials.pm, lib/Google/Auth/UserRefreshCredentials.pm, lib/Google/Auth/ImpersonatedServiceAccountCredentials.pm

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality impact as high; integrity and availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.