CVE-2026-108157
Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking
- State
- Published
- Severity
- 9.2 Critical
- Published
- Oct 9, 2026
- Updated
- Oct 9, 2026
- Reserved
- Oct 9, 2026
Description
Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that allows remote unauthenticated attackers to take over accounts by abusing automatic OAuth email linking in OAuthService.signUp(). Attackers can register a victim's unverified email on an enabled OAuth/OIDC provider, exploiting the missing email_verified check in GenericOidcProvider, to sign in as the victim including administrators while bypassing TOTP.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.2 Critical | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
pingvin-share-xsmp46 |
|
References
- GitHub Security Advisory (GHSA-wrcg-4874-45p7)vendor-advisory
- Patch Commitpatch
- https://github.com/smp46/pingvin-share-x/blob/de7ffecf9bfc4976993149a5c4c98efe35161424/backend/src/oauth/oauth.service.ts#L158-L175technical-description
- pingvin-share-x v1.22.0 Release Notesrelease-notes
- https://github.com/smp46/pingvin-share-xproduct
- VulnCheck Advisory: Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linkingthird-party-advisory
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