SurrealDB up to 3.2.0 Session Construction check_auth authorization

Summaryinfo

A vulnerability categorized as critical has been discovered in SurrealDB. This affects the function check_auth of the component Session Construction. Such manipulation leads to authorization. This vulnerability is documented as CVE-2026-102876. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in SurrealDB. It has been rated as critical. Affected by this issue is the function check_auth of the component Session Construction. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

SurrealDB before 3.3.0 contains an authorization bypass in HTTP session construction where check_auth() verifies credentials against Surreal-Auth-NS and Surreal-Auth-DB headers but constructs sessions using Surreal-NS and Surreal-DB headers without validating access permissions. Attackers can authenticate as a user from one tenant while selecting another tenant's namespace and database to read, create, and modify records across tenant boundaries.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-102876 since 09/29/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available.

Upgrading to version 3.3.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• SurrealDB

Version

• 1.0.1
• 1.1.0
• 1.1.1
• 1.2.0
• 1.2.1
• 1.5.4
• 1.5.5
• 2.0.0
• 2.0.0-beta.3
• 2.0.4
• 2.0.5
• 2.1.0
• 2.1.4
• 2.1.5
• 2.1.7
• 2.2.1
• 2.2.2
• 2.2.5
• 2.2.6
• 2.3.6
• 2.5.0
• 3.0.0-beta.2
• 3.0.0-beta.3
• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.2.0

Website

• Product: https://github.com/surrealdb/surrealdb/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion