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CVE-2026-108157 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/smp46/pingvin-share-x	[email protected]	Vendor
https://github.com/smp46/pingvin-share-x/blob/de7ffecf9bfc4976993149a5c4c98efe35161424/backend/src/oauth/oauth.service.ts#L158-L175	[email protected]	Source CodeVendor
https://github.com/smp46/pingvin-share-x/commit/07aa8c0a96030c439e9018ce94a2778bd37304e6	[email protected]	Source CodeVendor
https://github.com/smp46/pingvin-share-x/releases/tag/v1.22.0	[email protected]	Release NotesVendor
https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-wrcg-4874-45p7	[email protected]	AdvisoryRemedyVendor
https://www.vulncheck.com/advisories/pingvin-share-x-0.19.0-before-1.22.0-account-takeover-via-oauth-email-linking	[email protected]	AdvisoryBundleRemedy

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	[email protected]

Affected Products

Product	Versions
Pingvin Share X	>= 0.19.0, < 1.22.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 1.22.0moderate effort Workaround:low effort Disable automatic OAuth registration by setting "Allow Registration" to false in the Administration Configuration LDAP menu. Users with existing local accounts can still manually link their external OAuth profiles via "My account".

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 9, 2026	CVE Modified	CISA-ADP
Oct 9, 2026	New CVE Received	[email protected]