Google::Auth versions 0.12 for Perl allow server side request forgery via unvalidated credential_source URLs in AWS external account credentials. An external_account configuration with the AWS subject token type selects Google::Auth::ExternalAccountCredentials::Aws. Its retrieve_subject_token sends requests to the imdsv2_session_token_url, url and region_url fields of credential_source without the host check that the other credential classes apply. Any caller that builds credentials from a configuration it does not fully control issues GET and PUT requests to hosts the configuration names, including internal services and link-local metadata endpoints.
History

Sat, 07 Nov 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 06 Nov 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Tue, 03 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Perl
Perl google::auth
Vendors & Products Perl
Perl google::auth

Sun, 01 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
Description Google::Auth versions 0.12 for Perl allow server side request forgery via unvalidated credential_source URLs in AWS external account credentials. An external_account configuration with the AWS subject token type selects Google::Auth::ExternalAccountCredentials::Aws. Its retrieve_subject_token sends requests to the imdsv2_session_token_url, url and region_url fields of credential_source without the host check that the other credential classes apply. Any caller that builds credentials from a configuration it does not fully control issues GET and PUT requests to hosts the configuration names, including internal services and link-local metadata endpoints.
Title Google::Auth versions 0.12 for Perl allow server side request forgery via unvalidated credential_source URLs in AWS external account credentials
Weaknesses CWE-918
References

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-11-01T16:43:14.737Z

Updated: 2026-11-06T15:00:16.224Z

Reserved: 2026-08-15T12:28:17.421Z

Link: CVE-2026-74759

cve-icon Vulnrichment

Updated: 2026-11-06T15:00:11.247Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-01T17:16:34.280

Modified: 2026-11-06T15:17:22.593

Link: CVE-2026-74759

cve-icon Redhat

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