Answer in brief
CVE-2026-63762 records a Medium severity (CVSS 6.0) vulnerability in SurrealDB before v2.6.1 Denial of Service via scripting. The current sources do not mark it as known exploited. The current feed maps surrealdb/surrealdb (generic), surrealdb/surrealdb (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps surrealdb/surrealdb (generic), surrealdb/surrealdb (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| surrealdb/surrealdbgeneric | >=0 <2.6.1 | 2.6.1 |
| surrealdb/surrealdbgeneric | >=0 <3.0.0-beta.3 | 3.0.0-beta.3 |
Published upstream
Jul 20, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 8, 2026
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.
Quoted source text, attributed separately from HOL analysis.