SurrealDB before v2.6.1 Denial of Service via scripting
SurrealDB before v2.6.1 (and before v3.0.0-beta.3) contains a denial of service vulnerability in its embedded JavaScript scripting engine, which is enabled via the --allow-scripting capability (disabled by default). Any user able to execute arbitrary queries — including unauthenticated guests when --allow-guests is enabled — can use built-in string functions to construct a large string and pass it to the JavaScript runtime for compilation, triggering a null pointer dereference in the underlying QuickJS-NG engine. This causes the server process to terminate immediately without graceful shutdown, requiring a manual restart. The issue was fixed by updating the rquickjs dependency from v0.9.0 to v0.11.0.
CVE-2026-63762
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-2026-63762
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
surrealdb
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": "0",
"lessThan": "2.6.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.6.1",
"versionType": "semver"
}
],
"packageURL": "pkg:cargo/surrealdb",
"defaultStatus": "unaffected"
},
{
"vendor": "surrealdb",
"product": "surrealdb",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "3.0.0-beta.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "3.0.0-beta.3",
"versionType": "semver"
}
],
"packageURL": "pkg:cargo/surrealdb",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-63762
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #12789 · Revision 1
- Added to Heist Feed
- Publisher date