CVE-2026-63754 json
SurrealDB before 3.1.0 Denial of Service via LIVE Query
published 2026-07-01 4 mo ago modified 2026-11-04 5 d ago also GHSA-4v76-cw68-4vc9 , EUVD-2026-45925
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
SurrealDB versions before 3.1.0 contain a denial of service vulnerability where malicious LIVE queries with WHERE clauses that evaluate to errors cause all CREATE, UPDATE, and DELETE operations on the watched table to fail. An authenticated user with only select permission can prevent write operations on a table for any user, including root, by registering a LIVE query that triggers evaluation errors until the query is killed or the session ends.
Patch / fix
- crates.io surrealdb 3.1.0
- surrealdb surrealdb 3.1.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 | <3.1.0 |
3.1.0 |
Affected products
- surrealdb surrealdb
Classification
- Weakness
-
- CWE-754 Improper Check for Unusual or Exceptional Conditions
References
-
github.com
/surrealdb/surrealdb/security/advisories/GHSA-4v76-cw68-4vc9
vendor-advisory, web, patch
-
github.com
/surrealdb/surrealdb/commit/af835eb199ad2327a04c42101d11aff21fce7e47
web
-
github.com
/surrealdb/surrealdb/commit/b29e03f0714d1c4ec091fc6f27f1edbe243b8aec
web
-
vulncheck.com
/advisories/surrealdb-before-denial-of-service-via-live-query
third-party-advisory
-
github.com
/surrealdb/surrealdb
package
Sources
- CVE List CVE-2026-63754
- GitHub Advisory GHSA-4v76-cw68-4vc9
- NVD CVE-2026-63754
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