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CVE-2026-103250

n8n before 1.123.80, 2.39.6, and 2.40.1 NoSQL Injection via MongoDB Chat Memory PUBLISHED

Description (CNA)

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a NoSQL injection vulnerability in the MongoDB Chat Memory node that fails to validate the sessionId parameter. Unauthenticated attackers can supply MongoDB query operators in the sessionId field to access conversation histories from other users and perform unauthorized write and delete operations.

Affected (CNA)

Vendor / productVersions
n8n-io / n8naffected 0 before 1.123.80; affected 2.0.0 before 2.39.6; affected 2.40.0 before 2.40.1

CWE

CWE-943

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.