Google::Auth versions 0.12 for Perl allow server side request forgery via unvalidated credential_source URLs in AWS external account credentials

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74759
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-01 17:16:34 UTC
Updated2026-11-02 19:34:23 UTC
DescriptionGoogle::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.

Risk And Classification

Problem Types: CWE-918 | CWE-918 CWE-918 Server-Side Request Forgery (SSRF)

References

ReferenceSourceLinkTags
metacpan.org/release/CJCOLLIER/Google-Auth-0.12/source/lib/Google/Auth/Ext... 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Upgrade to a future Google-Auth release.

Workarounds

CNA: Ensure that every credentials configuration reaching the Application Default Credentials flow comes from a trusted source.

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