Answer in brief
CVE-2026-123804 records a Medium severity (CVSS 6.8) vulnerability in SuperTokens Core: A session created concurrently with account unlink survives the unlink. The current sources do not mark it as known exploited. The current feed maps supertokens/supertokens-core (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps supertokens/supertokens-core (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| supertokens/supertokens-coregeneric | >=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 | 11.0.9, 11.1.4, 11.2.4, 11.3.8, 11.4.8, 12.0.11, 12.1.2, 12.2.1, 12.3.1 |
Published upstream
Nov 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 9, 2026
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.
Quoted source text, attributed separately from HOL analysis.