CVE-2026-74759

SSRF via unchecked AWS credential-source URLs

Published Nov 1, 2026 · Updated Nov 1, 2026

SSRF in AWS credentials in Google::Auth 0.12 for Perl allows attackers to reach internal services via crafted credential configurations. Google::Auth::ExternalAccountCredentials::Aws retrieves subject tokens using credential_source.imdsv2_session_token_url, url, and region_url without validating their hosts. Exploitation requires a caller to load attacker-influenced external_account configuration and reach metadata retrieval, causing GET and PUT requests from the application host, including to link-local endpoints.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in AWS credentials in Google::Auth 0.12 for Perl allows attackers to reach internal services via crafted credential configurations. Google::Auth::ExternalAccountCredentials::Aws retrieves subject tokens using credential_source.imdsv2_session_token_url, url, and region_url without validating their hosts. Exploitation requires a caller to load attacker-influenced external_account configuration and reach metadata retrieval, causing GET and PUT requests from the application host, including to link-local endpoints.

The record

CVE
CVE-2026-74759
Published
Nov 1, 2026
Updated
Nov 1, 2026
Vendor
Go standard library
Product
Google::Auth
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Nov 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0.12

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Go standard library · Google::Authversion=0.12

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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