Dashboard / CVE-2026-121419

CVE-2026-121419

HIGH
MEDIUM Priority: 0.03 BB Relevance: 67/100
Published: 2026-11-03 Modified: 2026-11-09 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: None
VC: High
VI: High
VA: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
surrealdb surrealdb 3.1.0 < 3.3.0
surrealdb surrealdb 3.1.0 < 3.3.0

References & Advisories (2)

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.6 / 10.0 v4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.32%
Raw Score 0.003190
Percentile 25.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00319
2026-11-13
0.00319
2026-11-12
0.00319
2026-11-10
0.00319
2026-11-09
0.00319
2026-11-08
0.00319
2026-11-07
0.00319
2026-11-06
0.00319
2026-11-05
0.00319
2026-11-04
0.00319

Intelligence Sources

mitre ref →
nvd ref →

External Links