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.
Metrics
Affected Vendors & Products
References
History
Wed, 21 Oct 2026 21:30:00 +0000
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| Metrics |
ssvc
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Fri, 16 Oct 2026 17:45:00 +0000
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| Description | 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. | |
| Title | bbs-go through 4.4.6 Account Takeover via Google One Tap Login | |
| First Time appeared |
Bbs-go Project
Bbs-go Project bbs-go |
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| Weaknesses | CWE-287 | |
| CPEs | cpe:2.3:a:bbs-go_project:bbs-go:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Bbs-go Project
Bbs-go Project bbs-go |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-16T17:39:10.284Z
Updated: 2026-10-21T20:45:39.318Z
Reserved: 2026-10-16T14:31:13.324Z
Link: CVE-2026-111639
Updated: 2026-10-21T20:45:32.849Z
Status : Deferred
Published: 2026-10-16T18:17:44.447
Modified: 2026-10-21T21:17:53.567
Link: CVE-2026-111639
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