CVE-2026-30244: Plane Plane Is Vulnerable To Unauthenticated Vulnerability

HIGH
Advisory Identifier: GHSA-87x4-j8vh-p5qf
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CVSS 7.5
CWE-284 CWE-200
Published
Advisory Summary

CVE-2026-30244 is a HIGH (CVSS 7.5) plane is vulnerable to unauthenticated vulnerability (CWE-284: Improper Access Control) affecting Plane libraries in the PyPI ecosystem. The issue involves plane is vulnerable to unauthenticated workspace member information disclosure. Remediation is available in the latest vendor maintenance releases.

CVE-2026-30244 at a Glance

CVE Identifier CVE-2026-30244
GHSA Identifier GHSA-87x4-j8vh-p5qf
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-284: Improper Access Control
Affected Product Plane
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-30244

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

plane fixed: Latest secure release 
pip install plane>=Latest secure release
Verify Direct and Transitive Dependencies

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

pip show plane

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-30244, inspect your installed packages using pip:

pip show plane

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

Note: The pip show plane command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Plane, 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

## Executive Summary A security vulnerability exists in the Plane project management platform that allows unauthenticated attackers to enumerate workspace members and extract sensitive information including email addresses, user roles, and internal identifiers. The vulnerability stems from Django REST Framework permission classes being incorrectly configured to allow anonymous access to protected endpoints. This vulnerability enables attackers to: - Enumerate all members of any workspace without authentication - Extract user email addresses and personally identifiable information (PII) - Identify administrative accounts for targeted attacks - Map organizational structure and user roles - Conduct reconnaissance for social engineering attacks **Affected Endpoints:** ``` GET /api/public/workspaces/{workspace_slug}/members/ GET /api/public/workspaces/{workspace_slug}/projects/{project_id}/members/ ``` A fix is available at https://github.com/makeplane/plane/releases/tag/v1.2.3.

CVE-2026-30244 Affected Plane Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
plane
pypi/plane
PyPI

References

GitHub Advisory / Wiki ADVISORY
https://github.com/makeplane/plane/security/advisories/GHSA-87x4-j8vh-p5qf
NVD — CVE-2026-30244 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-30244
Plane Source Repository REPOSITORY
https://github.com/makeplane/plane
Plane Release RELEASE
https://github.com/makeplane/plane/releases/tag/v1.2.2

Frequently Asked Questions

What is CVE-2026-30244?
CVE-2026-30244 is a security vulnerability in Plane involving Plane is Vulnerable to Unauthenticated Workspace Member Information Disclosure under CWE-284: Improper Access Control.
Which Plane versions are affected?
Affected versions include releases prior to current release patches across affected packages: plane.
What version fixes CVE-2026-30244?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is plane affected?
Yes, plane is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-30244?
CVE-2026-30244 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-30244?
CVE-2026-30244 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check PyPI dependencies for CVE-2026-30244?
Run the dependency tree command: 'pip show plane'. 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-87x4-j8vh-p5qf",
  "modified" : "2026-03-09T13:12:16Z",
  "published" : "2026-03-05T21:48:11Z",
  "aliases" : [ "CVE-2026-30244" ],
  "summary" : "Plane is Vulnerable to Unauthenticated Workspace Member Information Disclosure",
  "details" : "## Executive Summary\n\nA security vulnerability exists in the Plane project management platform that allows unauthenticated attackers to enumerate workspace members and extract sensitive information including email addresses, user roles, and internal identifiers. The vulnerability stems from Django REST Framework permission classes being incorrectly configured to allow anonymous access to protected endpoints.\n\nThis vulnerability enables attackers to:\n\n- Enumerate all members of any workspace without authentication\n- Extract user email addresses and personally identifiable information (PII)\n- Identify administrative accounts for targeted attacks\n- Map organizational structure and user roles\n- Conduct reconnaissance for social engineering attacks\n\n\n**Affected Endpoints:**\n\n```\nGET /api/public/workspaces/{workspace_slug}/members/\nGET /api/public/workspaces/{workspace_slug}/projects/{project_id}/members/\n```\nA fix is available at https://github.com/makeplane/plane/releases/tag/v1.2.3.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "plane"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 0.2.1"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/makeplane/plane/security/advisories/GHSA-87x4-j8vh-p5qf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-30244"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/makeplane/plane"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/makeplane/plane/releases/tag/v1.2.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-284" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-05T21:48:11Z",
    "nvd_published_at" : "2026-03-06T22:16:01Z"
  }
}