CVE-2026-109339CWE-770denial-of-service

CVE-2026-109339

Medium · published October 12, 2026

CVSS v3.1
4.9
EPSS
0%
Percentile
30.3
In the wild
Unconfirmed
What it is

SurrealDB 3.1.0 before 3.3.0 lets Surrealism modules exhaust server memory because module stdout/stderr lines are buffered unbounded in host memory, bypassing the configured module memory limit. An attacker can run an Owner-installed malicious module that writes output without newlines, crashing the server and denying service to all namespaces and databases.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00375 · 30.3th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-10-12T21:17Z
References (2)
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jj89-wvrw-c4gp · [email protected]https://www.vulncheck.com/advisories/surrealdb-3.1.0-before-3.3.0-memory-exhaustion-via-surrealism-module-output-buffering · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:05Z
    SurrealDB 3.1.0 before 3.3.0 Memory Exhaustion via Surrealism Module Output Buffering
    cvelistv5
  • 12 OCT 16:05Z
    SurrealDB 3.1.0 before 3.3.0 Memory Exhaustion via Surrealism Module Output Buffering
    cvelistv5