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Advisory record · GHSA-q8qp-67f9-wr3f

SurrealDB vulnerable to Denial of Service due to nested types annotations

CVSS 7.1 HighEPSS 0.0045 · 39th percentile

Published by the GitHub Advisory Database at 1 Jul 2026, 20:05 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
surrealdbcrates.io<3.1.03.1.0
Identifiers
GHSA-q8qp-67f9-wr3f · CVE-2026-63759
Weakness (CWE)
CWE-674
Tags
Published
1 Jul 2026
Updated
4 Nov 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

SurrealDB versions before 3.1.0 are vulnerable to denial of service. The type annotation parser did not enforce the configured recursion depth limit, so an authenticated user with query privileges can send a query with deeply nested type annotations and exhaust server memory, crashing the process. Upgrade to SurrealDB 3.1.0 or later. As a workaround, restrict untrusted users from running arbitrary queries using the --deny-arbitrary-query flag.

Written 8 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0045, the 39th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:18 UTC First seen by agentprime
  2. 31 Oct 2026, 15:18 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.