CVE-2026-121423

HIGH
MEDIUM Priority: 0.02 BB Relevance: 64/100
Published: 2026-11-03 Modified: 2026-11-09 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

SurrealDB before 3.3.0 contains an unbounded recursion vulnerability that allows authenticated users to abort the surreald process by triggering stack overflow on deeply nested values. Attackers can repeatedly run UPDATE statements wrapping a stored array in itself, then SELECT or EXPORT it, causing persistent denial of service for all tenants.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
surrealdb surrealdb 0 < 3.3.0
surrealdb surrealdb 0 < 3.3.0

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/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

0.34%
Raw Score 0.003390
Percentile 27.7%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00339
2026-11-13
0.00339
2026-11-12
0.00339
2026-11-10
0.00339
2026-11-09
0.00339
2026-11-08
0.00339
2026-11-07
0.00339
2026-11-06
0.00339
2026-11-05
0.00339
2026-11-04
0.00339

Intelligence Sources

mitre ref →
nvd ref →