PatchSiren cyber security CVE debrief
CVE-2026-63733 surrealdb CVE debrief
CVE-2026-63733 is a permissions bypass vulnerability in SurrealDB versions before 3.2.0. The vulnerability allows attackers with permission to perform a guarded operation to write to tables they lack permission for by embedding CREATE, UPDATE, DELETE, or UPSERT statements in the PERMISSIONS clause, causing unintended writes and data corruption. This vulnerability has a CVSS score of 5.3 and a severity of MEDIUM. Users of SurrealDB versions before 3.2.0 should be aware of this vulnerability and take steps to mitigate it.
- Vendor
- surrealdb
- Product
- Unknown
- CVSS
- MEDIUM 5.3
- 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 3.2.0 should be aware of this vulnerability and take steps to mitigate it. This includes upgrading to version 3.2.0 or later, and monitoring for suspicious activity. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability and take necessary actions to protect their systems.
Technical summary
The vulnerability is caused by a permissions bypass in the PERMISSIONS clause of SurrealDB versions before 3.2.0. Attackers can exploit this vulnerability by embedding data-modifying statements within the PERMISSIONS clause, allowing them to write to tables they lack permission for. This can lead to unintended writes and data corruption. The vulnerability has a CVSS score of 5.3 and a severity of MEDIUM. Users of SurrealDB versions before 3.2.0 should be aware of this vulnerability and take steps to mitigate it, including upgrading to version 3.2.0 or later, and monitoring for suspicious activity. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability and take necessary actions to protect their systems. Further verification is recommended to confirm affected scope and severity.
Defensive priority
Medium
Recommended defensive actions
- Upgrade to SurrealDB version 3.2.0 or later
- Monitor for suspicious activity
- Restrict access to sensitive tables
- Implement additional security measures to prevent data corruption
- 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 2026-07-20T12:19:42.243Z and was last modified on 2026-07-21T18:37:56.803Z. The NVD entry is currently Awaiting Analysis. This information is based on the CVE record and NVD entry. Further verification is recommended to confirm affected scope and severity.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-20T12:19:42.243Z and has not been modified since then. The NVD entry is currently Awaiting Analysis.