Skip to content
Heist/ feed
Back to feed
Critical

Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking

Type: advisorySources: OSV

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-108157
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 21:05 UTC · Revision 1

Source evidence

Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking

core-osv · Original source

Published 9 Oct 2026, 16:04 UTC

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.

osv:CVE-2026-108157
Complete source record
{
  "id": "e8250b86351e8553d77746c5e4128dcedeadbc3fb36edd7146eed4129a477c72",
  "url": "https://osv.dev/vulnerability/CVE-2026-108157",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking",
    "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.",
    "evidence": "osv:CVE-2026-108157",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-108157",
      "aliases": [
        "CVE-2026-108157",
        "GHSA-wrcg-4874-45p7"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/smp46/pingvin-share-x",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e89e31371269301c9e4a239bcbbde3e79969641a"
                },
                {
                  "fixed": "04a1806f1da68c6d1109bf81f7bd2b1cf74709a4"
                },
                {
                  "fixed": "07aa8c0a96030c439e9018ce94a2778bd37304e6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.19.0"
                      },
                      {
                        "fixed": "1.22.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "07aa8c0a96030c439e9018ce94a2778bd37304e6"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "04a1806f1da68c6d1109bf81f7bd2b1cf74709a4"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.22.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.22.0-beta.0",
            "v1.21.2",
            "v1.21.1",
            "v1.21.0",
            "v1.20.1",
            "v1.20.0",
            "v1.19.1",
            "v1.19.0",
            "v1.18.1",
            "v1.18.0",
            "v1.17.0",
            "v1.16.3",
            "v1.16.2",
            "v1.16.0",
            "v1.15.2",
            "v1.15.1",
            "v1.15.0",
            "v1.14.1",
            "v1.13.4",
            "v1.13.2",
            "v1.13.1",
            "v1.11.1",
            "v1.11.0",
            "v1.10.4",
            "v1.10.3",
            "v1.10.2",
            "v1.10.1",
            "v1.10.0",
            "v1.9.1",
            "v1.9.0",
            "v1.8.2",
            "v1.8.1",
            "v1.8.0",
            "v1.7.2",
            "v1.7.1",
            "v1.7.0",
            "v1.6.1",
            "v1.6.0",
            "v1.5.0",
            "v1.4.0",
            "v1.3.0",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.4",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v0.29.0",
            "v0.28.0",
            "v0.27.0",
            "v0.26.0",
            "v0.25.0",
            "v0.24.2",
            "v0.24.1",
            "v0.24.0",
            "v0.23.1",
            "v0.23.0",
            "v0.22.2",
            "v0.22.1",
            "v0.22.0",
            "v0.21.5",
            "v0.21.4",
            "v0.21.3",
            "v0.21.2",
            "v0.21.1",
            "v0.21.0",
            "v0.20.3",
            "v0.20.2",
            "v0.20.1",
            "v0.20.0",
            "v0.19.2",
            "v0.19.1",
            "v0.19.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108157.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.723247841Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108157.json",
        "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://nvd.nist.gov/vuln/detail/CVE-2026-108157",
        "https://www.vulncheck.com/advisories/pingvin-share-x-0.19.0-before-1.22.0-account-takeover-via-oauth-email-linking",
        "https://github.com/smp46/pingvin-share-x/commit/07aa8c0a96030c439e9018ce94a2778bd37304e6",
        "https://github.com/smp46/pingvin-share-x",
        "https://github.com/smp46/pingvin-share-x/blob/de7ffecf9bfc4976993149a5c4c98efe35161424/backend/src/oauth/oauth.service.ts#L158-L175"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-287"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108157.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-108157",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490060,
  "published_at": "2026-10-09T16:04:41.138+00:00"
}