CVE-2026-27949 — Plane Exposes User Email (PII and part of credential) in GET Parameter

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
makeplane / plane	affected < 1.3.0

CWE

CWE-200, CWE-598

References

https://github.com/makeplane/plane/security/advisories/GHSA-8rvg-7w43-p2w2

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.