CVE-2026-103250 (GCVE-0-2026-103250)
Vulnerability from cvelistv5
Published
2026-10-01 10:41
Modified
2026-10-06 00:06
Severity ?
7.0 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L
CWE
  • CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Summary
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.
References
Impacted products
Vendor Product Version
n8n-io n8n Version: 0   ≤
Version: 2.0.0   ≤
Version: 2.40.0   ≤
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