SurrealDB up to 2.6.0/3.0.0-beta.2 Scripting Engine null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k2.41-

Summaryinfo

A vulnerability was found in SurrealDB up to 2.6.0/3.0.0-beta.2. It has been rated as problematic. This affects an unknown function of the component Scripting Engine. The manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2026-63762. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in SurrealDB up to 2.6.0/3.0.0-beta.2 and classified as problematic. This issue affects an unknown function of the component Scripting Engine. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-63762 since 07/18/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/18/2026 CVE reserved
07/20/2026 +2 days Advisory disclosed
07/20/2026 +0 days VulDB entry created
07/20/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Not defined

CVE: CVE-2026-63762 (🔒)
GCVE (CVE): GCVE-0-2026-63762
GCVE (VulDB): GCVE-100-380597

Entryinfo

Created: 07/20/2026 15:36
Changes: 07/20/2026 15:36 (51)
Complete: 🔍
Cache ID: 216::103

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