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CVE-2026-109341— SurrealDB before 3.3.0 Field Permission Bypass via PATCH copy/move/test Operations

Quick assessment

Affected
surrealdb surrealdb
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 SurrealDB 3.3.0 版本之前存在一个权限绕过漏洞，允许具有表级写入权限的调用者通过解析未缩减记录（unreduced record）中的 JSON Patch 指针，读取被 SELECT 权限限制的字段。攻击者可以利用 PATCH 操作中的 copy 或 move 功能，将隐藏字段复制到可访问的目标位置，或者滥用测试不匹配错误作为信息泄露的 oracle（即利用错误响应来间接获取敏感数据）。

CVSS 7.1 · High EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
surrealdb surrealdb < 3.3.0 affected
3.3.0 unaffected
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I. Basic Information for CVE-2026-109341

Vulnerability Information
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Vulnerability Title
SurrealDB before 3.3.0 Field Permission Bypass via PATCH copy/move/test Operations
Source: CVE Program / CVE List V5
Vulnerability Description
SurrealDB before 3.3.0 contains an authorization bypass vulnerability that allows callers with table-level write permission to read SELECT-restricted fields by resolving JSON Patch pointers against the unreduced record. Attackers can use PATCH copy or move operations to copy hidden fields into readable destinations, or abuse test mismatch errors as a disclosure oracle.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
surrealdb surrealdb 0 ~ 3.3.0 -

II. Public POCs for CVE-2026-109341

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III. Intelligence Information for CVE-2026-109341

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Vendor Advisories for CVE-2026-109341 (2)

Same Patch Batch · surrealdb · 2026-10-12 · 11 CVEs total

CVE-2026-109343 8.1 HIGH SurrealDB before 3.3.0 Cross-Tenant Access via USE Statement
CVE-2026-109334 8.1 HIGH SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use
CVE-2026-109333 6.5 MEDIUM SurrealDB 3.0.0 before 3.3.0 Cross-Tenant Record Read via RETURN FETCH
CVE-2026-109338 6.5 MEDIUM SurrealDB before 3.3.0 Denial of Service via Headers Non-ASCII Values
CVE-2026-109335 6.5 MEDIUM SurrealDB 3.0.0 before 3.3.0 Information Disclosure via COMPUTED Fields
CVE-2026-109340 5.4 MEDIUM SurrealDB 3.1.0 before 3.3.0 Authorization Bypass via REFERENCE ON DELETE CASCADE
CVE-2026-109342 5.4 MEDIUM SurrealDB 3.0.0 before 3.3.0 Missing Authentication in revoke RPC Method
CVE-2026-109339 4.9 MEDIUM SurrealDB 3.1.0 before 3.3.0 Memory Exhaustion via Surrealism Module Output Buffering
CVE-2026-109337 4.3 MEDIUM SurrealDB before 3.3.0 Field Permission Bypass via LIVE SELECT WHERE Clause
CVE-2026-109336 4.3 MEDIUM SurrealDB before 3.3.0 Field Permission Bypass via LIVE SELECT $before/$after

IV. Related Vulnerabilities

Same product: surrealdb
Same vendor: surrealdb
Same weakness: CWE-200

V. Comments for CVE-2026-109341

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