CVE-2026-47380: NocoDB User Enumeration Vulnerability

MODERATE
Advisory Identifier: GHSA-jr54-jwhj-55gp
Share
CWE-307 CWE-208
Published
Advisory Summary

CVE-2026-47380 is a MODERATE user enumeration vulnerability (CWE-307: Improper Restriction of Excessive Authentication Attempts) affecting NocoDB libraries in the npm ecosystem. The issue involves user enumeration via sign-in timing. Remediation is available by upgrading affected packages to version 2026.04.1.

CVE-2026-47380 at a Glance

CVE Identifier CVE-2026-47380
GHSA Identifier GHSA-jr54-jwhj-55gp
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-307: Improper Restriction of Excessive Authentication Attempts
Affected Product NocoDB
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-47380

To remediate this vulnerability, upgrade all affected NocoDB dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

nocodb fixed: 2026.04.1 
npm install nocodb@2026.04.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls nocodb

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-47380, inspect your project dependencies using npm:

npm ls nocodb

Analyze the terminal output to locate any version of NocoDB in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.04.1), your application is affected.

Note: The npm ls nocodb command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-307: Improper Restriction of Excessive Authentication Attempts, where the product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame. In NocoDB, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary Sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. ### Details The unknown-user branch in `auth.service.ts` now performs a `bcrypt.compare` against a fixed dummy hash so the response time of failed sign-ins is approximately independent of whether the address exists. Rate limiting on the sign-in endpoint is implemented in the Enterprise build only and is not affected by this advisory. ### Impact A network-positioned attacker could enumerate registered email addresses by timing sign-in responses. Exploitation requires only the ability to send unauthenticated sign-in requests. ### Credit This issue was reported by [@AndyAnh174](https://github.com/AndyAnh174).

CVE-2026-47380 Affected NocoDB Versions

1 component(s)
Fixed Versions:
2026.04.1
Product / Package Ecosystem Affected Versions Fixed Version
nocodb
npm/nocodb
npm
< 2026.04.1
2026.04.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/nocodb/nocodb/security/advisories/GHSA-jr54-jwhj-55gp
NVD — CVE-2026-47380 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47380
NocoDB Source Repository REPOSITORY
https://github.com/nocodb/nocodb
NocoDB Release RELEASE
https://github.com/nocodb/nocodb/releases/tag/2026.04.1

Frequently Asked Questions

What is CVE-2026-47380?
CVE-2026-47380 is a security vulnerability in NocoDB involving User Enumeration via Sign-In Timing under CWE-307: Improper Restriction of Excessive Authentication Attempts.
Which NocoDB versions are affected?
Affected versions include releases prior to 2026.04.1 across affected packages: nocodb.
What version fixes CVE-2026-47380?
Upgrading to 2026.04.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nocodb affected?
Yes, nocodb is affected in releases prior to 2026.04.1. Upgrade your dependency to 2026.04.1 or later.
What CWE is associated with CVE-2026-47380?
CVE-2026-47380 is classified under CWE-307: Improper Restriction of Excessive Authentication Attempts (The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.).
How can I check npm dependencies for CVE-2026-47380?
Run the dependency tree command: 'npm ls nocodb'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jr54-jwhj-55gp",
  "modified" : "2026-07-20T21:18:04Z",
  "published" : "2026-06-05T16:03:55Z",
  "aliases" : [ "CVE-2026-47380" ],
  "summary" : "NocoDB: User Enumeration via Sign-In Timing",
  "details" : "### Summary\nSign-in response timing differed between known and unknown email addresses because\nthe unknown-user branch returned without performing a password hash comparison.\n\n### Details\nThe unknown-user branch in `auth.service.ts` now performs a `bcrypt.compare` against\na fixed dummy hash so the response time of failed sign-ins is approximately\nindependent of whether the address exists. Rate limiting on the sign-in endpoint is\nimplemented in the Enterprise build only and is not affected by this advisory.\n\n### Impact\nA network-positioned attacker could enumerate registered email addresses by timing\nsign-in responses. Exploitation requires only the ability to send unauthenticated\nsign-in requests.\n\n### Credit\nThis issue was reported by [@AndyAnh174](https://github.com/AndyAnh174).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "nocodb"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.04.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nocodb/nocodb/security/advisories/GHSA-jr54-jwhj-55gp"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-47380"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nocodb/nocodb"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nocodb/nocodb/releases/tag/2026.04.1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-208", "CWE-307" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-05T16:03:55Z",
    "nvd_published_at" : "2026-06-23T21:16:59Z"
  }
}