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CVE-2026-102876

8.1 · HIGH

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 sessi…

Published Sep 29, 2026CWE-639EPSS 0.27%

Overview

CVE-2026-102876 is a high-severity vulnerability. It was published on September 29, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/surrealdb/surrealdbGitHubgithub.com/surrealdb/surrealdb/blob/v3.2.4/surrealdb/server/src/ntw/auth.rsGitHubgithub.com/surrealdb/surrealdb/commit/5000e233b4a8b96689c82715c172061dcf711d31GitHubgithub.com/surrealdb/surrealdb/releases/tag/v3.3.0GitHubgithub.com/surrealdb/surrealdb/security/advisories/GHSA-vx2p-7hhm-wv62Refwww.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-headers

How CyberStrike helps

Frequently asked questions

What is CVE-2026-102876?

CVE-2026-102876 is a high-severity vulnerability. It was published on September 29, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-102876?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-102876?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-102876?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-102876 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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