CVE-2026-108157
Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that…
- Risk score
- 62/100
- CVSS
- 8.1 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 9 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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, exploit…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.22.0 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.1 high
- Remotely exploitable without logging in
References
- 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
Original 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.
Last activity 9 Oct 2026. Patch Forecast updates every hour.