🔐 CVE Alert

CVE-2026-123804

MEDIUM 6.8

SuperTokens Core: A session created concurrently with account unlink survives the unlink

CVSS Score
6.8
EPSS Score
0.0%
EPSS Percentile
0th

SuperTokens Core is an open source authentication server. From 7.0.0 until 11.0.9, 11.1.4, 11.2.4, 11.3.8, 11.4.8, 12.0.11, 12.1.2, 12.2.1, and 12.3.1, createNewSession can resolve a primary user before unlinkAccounts detaches a login method and then insert the session after unlink has enumerated and revoked the existing sessions. A user who controls the linked login method can exploit this race to retain a signed, database-backed, refreshable session as the former primary identity after that method is unlinked; the session persists until expiry or explicit revocation. This issue is fixed in versions 11.0.9, 11.1.4, 11.2.4, 11.3.8, 11.4.8, 12.0.11, 12.1.2, 12.2.1, and 12.3.1.

CWE CWE-362 CWE-613
Vendor supertokens
Product supertokens-core
Published Nov 9, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

supertokens / supertokens-core
>= 7.0.0, < 11.0.0 >= 11.0.0, < 11.0.9 >= 11.1.0, < 11.1.4 >= 11.2.0, < 11.2.4 >= 11.3.0, < 11.3.8 >= 11.4.0, < 11.4.8 >= 12.0.0, < 12.0.11 >= 12.1.0, < 12.1.2 >= 12.2.0, < 12.2.1 >= 12.3.0, < 12.3.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
github.com: https://github.com/supertokens/supertokens-core/security/advisories/GHSA-2pc4-vw9j-454c github.com: https://github.com/supertokens/supertokens-core/commit/182b39454ac44649cdef22d87f296a38a0b1a602 github.com: https://github.com/supertokens/supertokens-core/commit/378e1157dc26232a518d2c360ee60cf93c2fd8a2 github.com: https://github.com/supertokens/supertokens-core/commit/5aec64aca6d765cde491658210e6922e291742fd github.com: https://github.com/supertokens/supertokens-core/commit/b1c569ed59fffe16c2f657da1754abcae47d2761 github.com: https://github.com/supertokens/supertokens-core/commit/b44f1e1418206f411e541501c2e5b9b147add0d9 github.com: https://github.com/supertokens/supertokens-core/commit/bb6d5f8d1b79770e3cc37f214ba94c3e36e9c3b8 github.com: https://github.com/supertokens/supertokens-core/commit/c0b7f5eda20840f63f6b0f171d22bd49a7a609a1 github.com: https://github.com/supertokens/supertokens-core/commit/c8b48e843b323cd749dcb17b6b81c190e7882a43 github.com: https://github.com/supertokens/supertokens-core/commit/c950a01794cf0983ebd62412976cb80756bf5dd0 github.com: https://github.com/supertokens/supertokens-core/commit/d456dfbc02f2f7d68be7c05d876bdaa086f9a5b5 github.com: https://github.com/supertokens/supertokens-core/commit/fc273f5157d3e96f147aa42773607d627d3b495f github.com: https://github.com/supertokens/supertokens-core/releases/tag/v11.0.9 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v11.1.4 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v11.2.4 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v11.3.8 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v11.4.8 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v12.0.11 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v12.1.2 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v12.2.1 github.com: https://github.com/supertokens/supertokens-core/releases/tag/v12.3.1