CVE-2026-109336 — SurrealDB before 3.3.0 Field Permission Bypass via LIVE SELECT $before/$after
SurrealDB before 3.3.0 contains an authorization bypass vulnerability that allows record users to read fields hidden by field-level SELECT permissions through LIVE SELECT projections. Attackers can project restricted fields from the unreduced $after or $before parameters under an alias to receive exact stored values in CREATE, UPDATE, and DELETE notifications.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.2% (30-day exploitation probability)+2
- Technical severity (medium)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Surrealdb Surrealdb).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 5.3 | CVSS 4.0 | Medium | — | — | disclosure@vulncheck.com via NIST National Vulnerability Database |
| 5.3 | CVSS 4.0 | Medium | — | — | VulnCheck via CVE Program (cve.org) e CISA ADP |
| 4.3 | CVSS 3.1 | Medium | 2.8 | 1.4 | disclosure@vulncheck.com via NIST National Vulnerability Database |
| 4.3 | CVSS 3.1 | Medium | — | — | VulnCheck via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N (score shown at the top: disclosure@vulncheck.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
EPSS over time FIRST
Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.22%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Audit administrative actions and access to resources outside each user’s normal pattern.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · surrealdb/surrealdb
- Record published
- CVSS changed · 4.3
- Source status changed · → Deferred
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 13, 2026 – Oct 13, 2026
References
2 on the record
Elsewhere on this site
Related CVEs (same products)
- Medium CVE-2026-109338 SurrealDB before 3.3.0 Denial of Service via Headers Non-ASCII Values 3d
- High CVE-2026-109341 SurrealDB before 3.3.0 Field Permission Bypass via PATCH copy/move/test Operations 3d
- Medium CVE-2026-109340 SurrealDB 3.1.0 before 3.3.0 Authorization Bypass via REFERENCE ON DELETE CASCADE 3d
- High CVE-2026-109343 SurrealDB before 3.3.0 Cross-Tenant Access via USE Statement 3d
- Medium CVE-2026-109339 SurrealDB 3.1.0 before 3.3.0 Memory Exhaustion via Surrealism Module Output Buffering 3d
- Medium CVE-2026-109342 SurrealDB 3.0.0 before 3.3.0 Missing Authentication in revoke RPC Method 3d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No fixed version, patch or mitigation documented.
- No CISA SSVC assessment.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-109336 is "SurrealDB before 3.3.0 Field Permission Bypass via LIVE SELECT $before/$after", rated Medium. It affects Surrealdb (Surrealdb); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.3 describes technical severity. EPSS 0.22% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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