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Vendure vulnerable to timing attack that enables user enumeration in NativeAuthenticationStrategy

Type: advisorySources: OSV

Vendure is an open-source headless commerce platform. Prior to version 3.5.3, the `NativeAuthenticationStrategy.authenticate()` method is vulnerable to a timing attack that allows attackers to enumerate valid usernames (email addresses). In `packages/core/src/config/auth/native-authentication-strategy.ts`, the authenticate method returns immediately if a user is not found. The significant timing difference (~200-400ms for bcrypt vs ~1-5ms for DB miss) allows attackers to reliably distinguish between existing and non-existing accounts. Version 3.5.3 fixes the issue.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-25050
Confirmed fixed CVEs
Not specified
Updated in this feed
6 Nov 2026, 01:09 UTC · Revision 1

Source evidence

Vendure vulnerable to timing attack that enables user enumeration in NativeAuthenticationStrategy

core-osv · Original source

Published 30 Jan 2026, 15:11 UTC

Vendure is an open-source headless commerce platform. Prior to version 3.5.3, the `NativeAuthenticationStrategy.authenticate()` method is vulnerable to a timing attack that allows attackers to enumerate valid usernames (email addresses). In `packages/core/src/config/auth/native-authentication-strategy.ts`, the authenticate method returns immediately if a user is not found. The significant timing difference (~200-400ms for bcrypt vs ~1-5ms for DB miss) allows attackers to reliably distinguish between existing and non-existing accounts. Version 3.5.3 fixes the issue.

osv:CVE-2026-25050
Complete source record
{
  "id": "d8af2f075f5fd9e618886a6b4b304cc98477fa3a01ba3efa2d5e592585cf3fc8",
  "url": "https://osv.dev/vulnerability/CVE-2026-25050",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Vendure vulnerable to timing attack that enables user enumeration in NativeAuthenticationStrategy",
    "summary": "Vendure is an open-source headless commerce platform. Prior to version 3.5.3, the `NativeAuthenticationStrategy.authenticate()` method is vulnerable to a timing attack that allows attackers to enumerate valid usernames (email addresses). In `packages/core/src/config/auth/native-authentication-strategy.ts`, the authenticate method returns immediately if a user is not found. The significant timing difference (~200-400ms for bcrypt vs ~1-5ms for DB miss) allows attackers to reliably distinguish between existing and non-existing accounts. Version 3.5.3 fixes the issue.",
    "evidence": "osv:CVE-2026-25050",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-25050",
      "aliases": [
        "CVE-2026-25050",
        "GHSA-6f65-4fv2-wwch"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"
        }
      ],
      "affected": [
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              "type": "GIT",
              "events": [
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                {
                  "fixed": "b3d8ad0ece67bf26dc6a056b8a659cc05e743c15"
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              "database_specific": {
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                    "range": [
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                        "introduced": "0"
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                      {
                        "fixed": "3.5.3"
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                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b3d8ad0ece67bf26dc6a056b8a659cc05e743c15"
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                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v3.5.3"
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                  {
                    "cpe": "cpe:2.3:a:vendure:vendure:*:*:*:*:*:*:*:*",
                    "range": [
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                        "introduced": "0"
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                    "source": "CPE_RANGE"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25050.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.814795002Z",
      "provider": "osv",
      "references": [
        "https://github.com/vendurehq/vendure/releases/tag/v3.5.3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25050.json",
        "https://github.com/vendurehq/vendure/security/advisories/GHSA-6f65-4fv2-wwch",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-25050"
      ],
      "provider_metadata": {
        "cwe_ids": [
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        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25050.json"
      }
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    "related_cves": [
      {
        "value": "CVE-2026-25050",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 513721,
  "published_at": "2026-01-30T15:11:40.296+00:00"
}