CVE-2026-66902: Google::Auth 0 to before 0.06

CVE-2026-66902. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00702 (percentile 0.52698), scored 22-Oct-2026.

Affected technology

Google::Auth · 0 to before 0.06
CJCOLLIER

Description’s affected range: versions before 0.06 for Perl run a command named in an external_account credentials JSON via an ungated system call

Component: Not specified by the source
Function: Google::Auth::ExternalAccountCredentials::Pluggable::retrieve_subject_token
File: lib/Google/Auth/ExternalAccountCredentials/Pluggable.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 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 24-Oct-2026 01:43 UTC

CWE: CWE-78, CWE-829
CCR priority: 39.4 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.00702 · percentile 0.52698 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-66902.html