{"id":"CVE-2026-108157","aliases":["EUVD-2026-95905","GHSA-7p7c-6qwr-q8j7","GHSA-wrcg-4874-45p7"],"status":"published","title":"Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking","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.","severity":{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00535,"percentile":0.45623,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-10-09T16:04:41Z","modified":"2026-10-28T02:30:23Z","products":[{"vendor":"smp46","product":"pingvin-share-x"}],"references":[{"url":"https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-wrcg-4874-45p7","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/smp46/pingvin-share-x/commit/07aa8c0a96030c439e9018ce94a2778bd37304e6","tags":["patch","fix"]},{"url":"https://github.com/smp46/pingvin-share-x/blob/de7ffecf9bfc4976993149a5c4c98efe35161424/backend/src/oauth/oauth.service.ts#L158-L175","tags":["technical-description","article"]},{"url":"https://github.com/smp46/pingvin-share-x/releases/tag/v1.22.0","tags":["release-notes","advisory"]},{"url":"https://github.com/smp46/pingvin-share-x","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/pingvin-share-x-0.19.0-before-1.22.0-account-takeover-via-oauth-email-linking","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108157","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7p7c-6qwr-q8j7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108157.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-108157","title":"Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking","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.","status":"published","published":"2026-10-09T16:04:41.138Z","modified":"2026-10-09T17:14:05.839Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:20:10.510075Z"}],"euvd":[{"id":"EUVD-2026-95905","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.","status":"published","published":"2026-10-09T16:04:41Z","modified":"2026-10-09T17:14:05Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T17:27:24.64208Z"}],"ghsa":[{"id":"GHSA-7p7c-6qwr-q8j7","title":"Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that...","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.","status":"published","published":"2026-10-09T18:31:44Z","modified":"2026-10-09T18:31:44Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:13:01.290603Z"}],"nvd":[{"id":"CVE-2026-108157","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.","status":"published","published":"2026-10-09T17:16:46.703Z","modified":"2026-10-09T18:17:07.24Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:12:55.473789Z"}],"osv":[{"id":"CVE-2026-108157","title":"Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking","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.","status":"published","published":"2026-10-09T16:04:41.138Z","modified":"2026-10-28T02:30:23.723247841Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:44:54.933106Z"}]}}