CVE-2026-63737 json
SurrealDB before 3.1.5 Denial of Service via deep operator chains
published 4mo ago modified 8d ago also GHSA-jv2j-mqmw-xvv5 , EUVD-2026-45908
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
SurrealDB versions before 3.1.5 contain a denial of service vulnerability where authenticated users can crash the server with queries containing long chains of operators. Attackers can submit queries with tens of thousands of chained operators that create unbounded expression trees, causing stack overflow during query processing and aborting the entire process.
Patch / fix
- crates.io surrealdb 3.1.5
- surrealdb surrealdb 3.1.5
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | surrealdb | >=3.0.0, <3.1.5 |
3.1.5 |
Affected products
- surrealdb surrealdb
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
References
-
github.com
/surrealdb/surrealdb/security/advisories/GHSA-jv2j-mqmw-xvv5
vendor-advisory, web, mitigation
-
vulncheck.com
/advisories/surrealdb-before-denial-of-service-via-deep-operator-chains
third-party-advisory
-
github.com
/surrealdb/surrealdb
package
Sources
- CVE List CVE-2026-63737
- GitHub Advisory GHSA-jv2j-mqmw-xvv5
- NVD CVE-2026-63737
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