SurrealDB 3.1.0 before 3.3.0 Memory Exhaustion via Surrealism Module Output Buffering
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.
CVE-2026-109339
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109339
surrealdb
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
surrealism-runtime
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "surrealdb",
"product": "surrealdb",
"versions": [
{
"status": "affected",
"version": "3.1.0",
"lessThan": "3.3.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "3.3.0",
"versionType": "semver"
}
],
"packageURL": "pkg:cargo/surrealdb",
"defaultStatus": "unaffected"
},
{
"vendor": "surrealdb",
"product": "surrealism-runtime",
"versions": [
{
"status": "affected",
"version": "0.3.0",
"lessThan": "0.6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "0.6.0",
"versionType": "semver"
}
],
"packageURL": "pkg:cargo/surrealism-runtime",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109339
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20489 · Revision 1
- Added to Heist Feed
- Publisher date