CVE-2026-108157

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/smp46/pingvin-share-x
https://github.com/smp46/pingvin-share-x/blob/de7ffecf9bfc4976993149a5c4c98efe35161424/backend/src/oauth/oauth.service.ts#L158-L175
https://github.com/smp46/pingvin-share-x/commit/07aa8c0a96030c439e9018ce94a2778bd37304e6
https://github.com/smp46/pingvin-share-x/releases/tag/v1.22.0
https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-wrcg-4874-45p7
https://www.vulncheck.com/advisories/pingvin-share-x-0.19.0-before-1.22.0-account-takeover-via-oauth-email-linking

Configurations

No configuration.

History

09 Oct 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-09 17:16

Updated : 2026-10-09 18:17

NVD link : CVE-2026-108157

Mitre link : CVE-2026-108157

CVE.ORG link : CVE-2026-108157

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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