CVE-2026-32269: Parse server Parse Server OAuth2 Adapter App Vulnerability

MODERATE
Advisory Identifier: GHSA-69xg-f649-w5g2
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CWE-683
Published
Advisory Summary

CVE-2026-32269 is a MODERATE parse server oauth2 adapter app vulnerability (CWE-683: Function Call With Incorrect Order of Arguments) affecting Parse server libraries in the npm ecosystem. The issue involves parse server oauth2 adapter app id validation sends wrong token to introspection endpoint. Remediation is available by upgrading affected packages to version 9.6.0-alpha.13, 8.6.39.

CVE-2026-32269 at a Glance

CVE Identifier CVE-2026-32269
GHSA Identifier GHSA-69xg-f649-w5g2
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-683: Function Call With Incorrect Order of Arguments
Affected Product Parse server
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-32269

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.13 
npm install parse-server@9.6.0-alpha.13
parse-server fixed: 8.6.39 
npm install parse-server@8.6.39
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-2026-32269, 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.13), 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-683: Function Call With Incorrect Order of Arguments, where the product calls a function, procedure, or routine, but the caller specifies the arguments in an incorrect order, leading to resultant weaknesses. 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 OAuth2 authentication adapter does not correctly validate app IDs when `appidField` and `appIds` are configured. During app ID validation, a malformed value is sent to the token introspection endpoint instead of the user's actual access token. Depending on the introspection endpoint's behavior, this could either cause all OAuth2 logins to fail, or allow authentication from disallowed app contexts if the endpoint returns valid-looking data for the malformed request. Deployments using the OAuth2 adapter with `appidField` and `appIds` configured are affected. ### Patches The fix corrects the parameter alignment in the OAuth2 adapter's app ID validation method to match the expected interface, ensuring the correct access token is sent to the introspection endpoint. ### Workarounds There is no known workaround. ### References - GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-69xg-f649-w5g2 - Fix in Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.13 - Fix in Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.39

CVE-2026-32269 Affected Parse server Versions

2 component(s)
Fixed Versions:
9.6.0-alpha.138.6.39
Product / Package Ecosystem Affected Versions Fixed Version
parse-server
npm/parse-server
npm
≥ 9.0.0
< 9.6.0-alpha.13
9.6.0-alpha.13
parse-server
npm/parse-server
npm
≥ 8.0.2
< 8.6.39
8.6.39

References

GitHub Advisory / Wiki ADVISORY
https://github.com/parse-community/parse-server/security/advisories/GHSA-69xg-f649-w5g2
NVD — CVE-2026-32269 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32269
Parse server Source Repository REPOSITORY
https://github.com/parse-community/parse-server
Parse server Release RELEASE
https://github.com/parse-community/parse-server/releases/tag/8.6.39
Parse server Release RELEASE
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.13

Frequently Asked Questions

What is CVE-2026-32269?
CVE-2026-32269 is a security vulnerability in Parse server involving Parse Server OAuth2 adapter app ID validation sends wrong token to introspection endpoint under CWE-683: Function Call With Incorrect Order of Arguments.
Which Parse server versions are affected?
Affected versions include releases prior to 9.6.0-alpha.13, 8.6.39 across affected packages: parse-server.
What version fixes CVE-2026-32269?
Upgrading to 9.6.0-alpha.13, 8.6.39 (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.13, 8.6.39. Upgrade your dependency to 9.6.0-alpha.13, 8.6.39 or later.
What CWE is associated with CVE-2026-32269?
CVE-2026-32269 is classified under CWE-683: Function Call With Incorrect Order of Arguments (The product calls a function, procedure, or routine, but the caller specifies the arguments in an incorrect order, leading to resultant weaknesses.).
How can I check npm dependencies for CVE-2026-32269?
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-69xg-f649-w5g2",
  "modified" : "2026-03-13T20:02:25Z",
  "published" : "2026-03-13T20:02:25Z",
  "aliases" : [ "CVE-2026-32269" ],
  "summary" : "Parse Server OAuth2 adapter app ID validation sends wrong token to introspection endpoint",
  "details" : "### Impact\n\nThe OAuth2 authentication adapter does not correctly validate app IDs when `appidField` and `appIds` are configured. During app ID validation, a malformed value is sent to the token introspection endpoint instead of the user's actual access token. Depending on the introspection endpoint's behavior, this could either cause all OAuth2 logins to fail, or allow authentication from disallowed app contexts if the endpoint returns valid-looking data for the malformed request.\n\nDeployments using the OAuth2 adapter with `appidField` and `appIds` configured are affected.\n\n### Patches\n\nThe fix corrects the parameter alignment in the OAuth2 adapter's app ID validation method to match the expected interface, ensuring the correct access token is sent to the introspection endpoint.\n\n### Workarounds\n\nThere is no known workaround.\n\n### References\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-69xg-f649-w5g2\n- Fix in Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.13\n- Fix in Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.39",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/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.13"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "parse-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.2"
      }, {
        "fixed" : "8.6.39"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/security/advisories/GHSA-69xg-f649-w5g2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32269"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/parse-community/parse-server"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/releases/tag/8.6.39"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.13"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-683" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-13T20:02:25Z",
    "nvd_published_at" : "2026-03-12T20:16:06Z"
  }
}