By Null Ventures MCP platform
Menu

vulnerability / NVI-00014035 / Revision 1

SurrealDB: ES512 silently downgraded to ES384 due to jsonwebtoken crate limitation

GitHub lists this reviewed advisory for surrealdb. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.

source listedactiveGHSA-fwg2-gr34-q3w8CVE-2026-63761

This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.

01 / Meaning

Why it matters

Published affected context helps an owner decide what evidence to gather. This report has not examined your application.

CVSS

4.3 medium

GitHub source severity; exploitability and local consequence require separate evidence.

As of · GitHub Advisory Database

02 / Applicability

The affected context

Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.

surrealdb

source listed
  • < 3.1.0

When a user configures `ALGORITHM ES512` for any JWT access method (`DEFINE ACCESS ... TYPE JWT ALGORITHM ES512`), SurrealDB silently substitutes ES384 at all four internal algorithm conversion points. This occurs because the underlying `jsonwebtoken` crate (v10.x) does not include an ES512 algorithm variant, so the mapping defaults to ES384 without raising an error, warning, or log message. Users who provide the correct P-521 key type for ES512 will experience authentication handshake failures due to the curve mismatch with ES384 (which expects P-384). ### Impact Authentication handshake failures when using ES512 with the correct P-521 key type, and when tokens are verified by external systems expecting real ES512 signatures. This vulnerability cannot be exploited to forge tokens or compromise the integrity or confidentiality of data handled by SurrealDB, as ES384 remains cryptographically strong. ### Patches Versions prior to SurrealDB `v3.1.0` are vulnerable. The patches for SurrealDB `v3.1.0` block new `DEFINE ACCESS` statements using `ALGORITHM ES512` with a clear error message and add deprecation warnings at runtime for existing stored ES512 definitions. ### Wo

GitHub Advisory Database

03 / Response

What to do next

  1. investigate

    Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.

    Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database

A fixed release is not deployment evidence.

Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.

04 / Limits

What this report cannot establish

  • Customer inventory, deployment, reachability and exploitation have not been inspected.
Read the collection and interpretation limits ↗

05 / Provenance

Sources you can inspect

Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.

  1. GHSA-fwg2-gr34-q3w8 ↗

    GitHub Advisory Database · vendor advisory

    Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.

Public revision history

Only published revisions appear here. Routine fetches do not create a material-change event.

  1. Revision 1 ·

    First indexed by Null; source disclosure date is shown separately.

Read the public revision data ↗

The next step is private

Bring the question into your environment.

The connected workflow is a development preview for inventory, contextual matching, owner decisions and evidence-based verification. No system-specific result is generated by this page.

See the synthetic workflow preview ↗