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Medium severity6.5NVD Advisory· Published Jul 20, 2026· Updated Jul 22, 2026

CVE-2026-63762

CVE-2026-63762

Description

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.

Affected products

21
  • Surrealdb/Surrealdb21 versions
    cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*+ 20 more
    • cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*range: <2.6.1
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha10:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha11:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha12:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha13:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha14:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha16:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha17:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha18:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha1:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha2:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha3:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha4:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha5:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha6:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha7:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha8:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:alpha9:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:beta1:*:*:*:*:*:*
    • cpe:2.3:a:surrealdb:surrealdb:3.0.0:beta2:*:*:*:*:*:*
    • (no CPE)range: <2.6.1, <3.0.0-beta.3

Patches

Vulnerability mechanics

References

2

News mentions

0

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