CVE-2026-74759
Google::Auth versions 0.12 for Perl allow server side request forgery via unvalidated…
- Risk score
- 65/100
- CVSS
- 9.8 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 1 Nov 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Google::Auth versions 0.12 for Perl allow server-side request forgery via unvalidated credential_source URLs in AWS external account credentials. An attacker could issue GET and PUT requests to hosts the configuration names, including internal services and link-local metadata endpoints.
- Affected
- {'products': ['Google::Auth'], 'packages': ['Google::Auth for Perl'], 'versions': ['0.12']}
- Fix
- Check the linked advisory for a fix, as none is provided.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.8 critical
- Remotely exploitable without logging in
References
Original 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.
Last activity 1 Nov 2026. Patch Forecast updates every hour.