CVE-2026-111639
CVE-2026-111639 · bbs-go through 4.4.6 Account Takeover via Google One Tap Login
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
bbs-go through 4.4.6 contains an authentication bypass vulnerability in the /api/login/google_one_tap endpoint that allows remote attackers to log in as other users by submitting Google ID tokens issued to any OAuth client. Attackers operating their own Google OAuth client can capture a victim's Google-signed ID token and replay it, since the aud claim is never checked, to obtain an authenticated session as the victim's Google-linked account.
CVSS 8.6 · Alta · EPSS 0,5%
- Publicación
- Actualización
Productos y versiones afectados
bbs-go
- Versiones
- ≥ 0, ≤ 4.4.6: Afectada (custom)
Sin corrección publicada
Fuentes originales
- https://hackmd.io/@hieuPenguinnn/bbs-go-google-one-tap-id-token-audience-confusion-account-takeover
- https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/pkg/google/jwt.go#L55-L58
- https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/services/third_user_service.go#L274-L293
- https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-account-takeover-via-google-one-tap-login
- https://nvd.nist.gov/vuln/detail/CVE-2026-111639