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CVE-2026-121419

CVSS 4.0
8.6 high
CISA KEV
Not listed
Technical details
Weakness
CWE-269
EPSS · 12 Nov 2026
0.32% · p25
Public resources
None found
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.

Description

SurrealDB from 3.1.0 before 3.3.0 contains an improper authentication vulnerability where the MCP BoundSubject fingerprint uses the access method name instead of per-user identity for JWT/Bearer access. Attackers with a valid low-privilege token for the same access method and a victim's mcp-session-id can hijack the session and execute MCP tools with the victim's roles and permissions.

Exploits & detection

No public PoC or detection template found yet.

Timeline

  • Published: 03 Nov 2026
  • Last modified upstream: 09 Nov 2026

Sources & licenses

CVE / CVSS / CWE
NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
Exploitation
CISA KEV (CC0) · EPSS by FIRST.org
References used for the analysis
Analysis, summary and remediation
© VulnCrest

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