Medium 6.0Published Jul 20, 2026

CVE-2026-63762SurrealDB before v2.6.1 Denial of Service via scripting

Updated under an hour ago (2026-10-19 08:30 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for surrealdb

Exploited in the last 30 days

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.

CVSS: 6.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-476
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Oct 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

surrealdb surrealdb surrealdb:surrealdb (from the name)	before 2.6.1; 2.6.1 not affected	CNA record
surrealdb surrealdb surrealdb:surrealdb	before 2.6.1; 3.0.0; 3.0.0; 3.0.0; 3.0.0; 3.0.0; 3.0.0; 3.0.0; and 12 more ranges	NVD

References

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-xx7m-69ff-9crpvendor-advisory
https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-scriptingthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.