CVE-2026-32943: Parse server Parse Server Has A Password Vulnerability

LOW
Advisory Identifier: GHSA-r3xq-68wh-gwvh
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CWE-367
Published
Advisory Summary

CVE-2026-32943 is a LOW parse server has a password vulnerability (CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition) affecting Parse server libraries in the npm ecosystem. The issue involves parse server has a password reset token single-use bypass via concurrent requests. Remediation is available by upgrading affected packages to version 9.6.0-alpha.28, 8.6.48.

CVE-2026-32943 at a Glance

CVE Identifier CVE-2026-32943
GHSA Identifier GHSA-r3xq-68wh-gwvh
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Affected Product Parse server
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-32943

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

parse-server fixed: 9.6.0-alpha.28 
npm install parse-server@9.6.0-alpha.28
parse-server fixed: 8.6.48 
npm install parse-server@8.6.48
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 parse-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-32943, inspect your project dependencies using npm:

npm ls parse-server

Analyze the terminal output to locate any version of Parse server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.6.0-alpha.28), your application is affected.

Note: The npm ls parse-server 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-367: Time-of-check Time-of-use (TOCTOU) Race Condition, where the product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. In Parse server, 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

### Impact The password reset mechanism does not enforce single-use guarantees for reset tokens. When a user requests a password reset, the generated token can be consumed by multiple concurrent requests within a short time window. An attacker who has intercepted a password reset token can race the legitimate user's password reset request, causing both requests to succeed. This may result in the legitimate user believing their password was changed successfully while the attacker's password takes effect instead. All Parse Server deployments that use the password reset feature are affected. ### Patches The password reset token is now atomically validated and consumed as part of the password update operation. The database query that updates the password includes the reset token as a condition, ensuring that only one concurrent request can successfully consume the token. Subsequent requests using the same token will fail because the token has already been cleared. ### Workarounds There is no known workaround other than upgrading.

CVE-2026-32943 Affected Parse server Versions

2 component(s)
Fixed Versions:
9.6.0-alpha.288.6.48
Product / Package Ecosystem Affected Versions Fixed Version
parse-server
npm/parse-server
npm
≥ 9.0.0
< 9.6.0-alpha.28
9.6.0-alpha.28
parse-server
npm/parse-server
npm
< 8.6.48
8.6.48

References

GitHub Advisory / Wiki ADVISORY
https://github.com/parse-community/parse-server/security/advisories/GHSA-r3xq-68wh-gwvh
NVD — CVE-2026-32943 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32943
Parse server Source Repository REPOSITORY
https://github.com/parse-community/parse-server/pull/10216
Parse server Source Repository REPOSITORY
https://github.com/parse-community/parse-server/pull/10217
Parse server Source Repository REPOSITORY
https://github.com/parse-community/parse-server

Frequently Asked Questions

What is CVE-2026-32943?
CVE-2026-32943 is a security vulnerability in Parse server involving Parse Server has a password reset token single-use bypass via concurrent requests under CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition.
Which Parse server versions are affected?
Affected versions include releases prior to 9.6.0-alpha.28, 8.6.48 across affected packages: parse-server.
What version fixes CVE-2026-32943?
Upgrading to 9.6.0-alpha.28, 8.6.48 (or the latest patched release for your respective branch) resolves the vulnerability.
Is parse-server affected?
Yes, parse-server is affected in releases prior to 9.6.0-alpha.28, 8.6.48. Upgrade your dependency to 9.6.0-alpha.28, 8.6.48 or later.
What CWE is associated with CVE-2026-32943?
CVE-2026-32943 is classified under CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition (The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.).
How can I check npm dependencies for CVE-2026-32943?
Run the dependency tree command: 'npm ls parse-server'. 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-r3xq-68wh-gwvh",
  "modified" : "2026-03-19T21:12:17Z",
  "published" : "2026-03-17T17:40:08Z",
  "aliases" : [ "CVE-2026-32943" ],
  "summary" : "Parse Server has a password reset token single-use bypass via concurrent requests",
  "details" : "### Impact\n\nThe password reset mechanism does not enforce single-use guarantees for reset tokens. When a user requests a password reset, the generated token can be consumed by multiple concurrent requests within a short time window. An attacker who has intercepted a password reset token can race the legitimate user's password reset request, causing both requests to succeed. This may result in the legitimate user believing their password was changed successfully while the attacker's password takes effect instead.\n\nAll Parse Server deployments that use the password reset feature are affected.\n\n### Patches\n\nThe password reset token is now atomically validated and consumed as part of the password update operation. The database query that updates the password includes the reset token as a condition, ensuring that only one concurrent request can successfully consume the token. Subsequent requests using the same token will fail because the token has already been cleared.\n\n### Workarounds\n\nThere is no known workaround other than upgrading.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "parse-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.6.0-alpha.28"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "parse-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.6.48"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/security/advisories/GHSA-r3xq-68wh-gwvh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32943"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/pull/10216"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/pull/10217"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/parse-community/parse-server"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-367" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-17T17:40:08Z",
    "nvd_published_at" : "2026-03-18T22:16:25Z"
  }
}