Vulnerability in Garu Dancer::plugin::auth::google
CVE-2026-13410
Dancer::Plugin::Auth::Google versions before 0.08 for Perl have TLS verification disabled. The default user agent is initialised with SSL_verify_mode explicitly disabled. An attacker with network man-in-the-middle (MITM) capability between the Dancer application and googleapis.com can intercept the OAuth2 token exchange and userinfo fetch, return a forged access_token and user profile, and be logged in to the Dancer application as any Google user.
Vulnerability class: Improper Certificate Validation
EPSS: 0.004 (31.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L.
Affected products
- Garu Dancer::plugin::auth::google — versions 0
Weakness classification (CWE)
References
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (issue-tracking)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (technical-description)
- af854a3a-2127-422b-91ae-364da2661108
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
Frequently asked questions
- What is CVE-2026-13410?
- CVE-2026-13410 is a high-severity vulnerability in Garu Dancer::plugin::auth::google, classified under Improper Certificate Validation. CVSS score: 8.2/10. Published 2026-07-17.
- How severe is CVE-2026-13410?
- High severity. CVSS v3 base score is 8.2 out of 10.