CVE-2026-108157 json
Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking
published 2026-10-09 31 d ago modified 2026-10-09 30 d ago also EUVD-2026-95905
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- smp46 pingvin-share-x 1.22.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 31 d ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.2 | 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 |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.2 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- smp46 pingvin-share-x
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/smp46/pingvin-share-x/commit/07aa8c0a96030c439e9018ce94a2778bd37304e6
patch
-
github.com
/smp46/pingvin-share-x/security/advisories/GHSA-wrcg-4874-45p7
vendor-advisory
-
github.com
/smp46/pingvin-share-x/blob/de7ffecf9bfc4976993149a5c4c98efe35161424/backend/src/oauth/oauth.service.ts#L158-L
technical-description
-
github.com
/smp46/pingvin-share-x/releases/tag/v1.22.0
release-notes
-
github.com
/smp46/pingvin-share-x
product
-
vulncheck.com
/advisories/pingvin-share-x-0.19.0-before-1.22.0-account-takeover-via-oauth-email-linking
third-party-advisory
Sources
- CVE List CVE-2026-108157
- NVD CVE-2026-108157
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