CVE-2026-27949

Plane Exposes User Email (PII and part of credential) in GET Parameter

Published Apr 7, 2026 CVSS 3.1 · 2 Low EPSS < 1% KEV · Not listed
Description
Plane is an an open-source project management tool. Prior to 1.3.0, a vulnerability was identified in Plane's authentication flow where a user's email address is included as a query parameter in the URL during error handling (e.g., when an invalid magic code is submitted). Transmitting personally identifiable information (PII) via GET request query strings is classified as an insecure design practice. The affected code path is located in the authentication utility module (packages/utils/src/auth.ts). This vulnerability is fixed in 1.3.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Plane
Plane plane
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*
Vendors & Products Plane
Plane plane
Type Values Removed Values Added
First Time appeared Makeplane
Makeplane plane
Vendors & Products Makeplane
Makeplane plane
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Plane is an an open-source project management tool. Prior to 1.3.0, a vulnerability was identified in Plane's authentication flow where a user's email address is included as a query parameter in the URL during error handling (e.g., when an invalid magic code is submitted). Transmitting personally identifiable information (PII) via GET request query strings is classified as an insecure design practice. The affected code path is located in the authentication utility module (packages/utils/src/auth.ts). This vulnerability is fixed in 1.3.0.
Title Plane Exposes User Email (PII and part of credential) in GET Parameter
Weaknesses CWE-200
CWE-598
References
Metrics cvssV3_1

{'score': 2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N'}

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 8, 2026, 3:48 PM
Reserved
Feb 25, 2026, 3:11 AM
Status
Analyzed
Published
Apr 7, 2026, 9:17 PM
Modified
Jul 24, 2026, 11:10 PM