PatchSiren cyber security CVE debrief
CVE-2026-63740 surrealdb CVE debrief
SurrealDB versions before 3.1.4 have a vulnerability where record users can read array elements that should be denied by exploiting incorrect index handling during permission filtering. This issue allows attackers with record scope access to access sensitive data. The vulnerability arises from a flaw in the permission filtering mechanism for array elements, potentially leading to unauthorized access to sensitive information.
- Vendor
- surrealdb
- Product
- Unknown
- CVSS
- HIGH 7.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-20
- Original CVE updated
- 2026-07-22
- Advisory published
- 2026-07-20
- Advisory updated
- 2026-07-22
Who should care
Users of SurrealDB versions before 3.1.4 should be aware of this vulnerability and take steps to mitigate it. This includes upgrading to version 3.1.4 or later and reviewing access controls for record users. Additionally, security teams and operators managing SurrealDB deployments should review the vulnerability and implement necessary controls to prevent exploitation.
Technical summary
The vulnerability in SurrealDB versions before 3.1.4 is due to improper enforcement of SELECT permissions on array elements for record users. This allows attackers to read array elements that should be denied, potentially leading to unauthorized access to sensitive data. The issue arises from incorrect index handling during permission filtering, which can be exploited by attackers with record scope access.
Defensive priority
High
Recommended defensive actions
- Upgrade to SurrealDB version 3.1.4 or later
- Review and adjust access controls for record users
- Monitor for suspicious activity related to array element access
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
Evidence notes
The CVE record was published on 2026-07-20T12:19:43.287Z and last modified on 2026-07-21T18:37:56.803Z. The NVD entry is currently Awaiting Analysis. This information is based on the provided source corpus. Further verification is recommended to confirm the accuracy of this information.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-20T12:19:43.287Z and has not been modified since then. The NVD entry is currently Awaiting Analysis.