CVE-2026-39374

Description

Plane is an an open-source project management tool. Prior to 1.3.0, the IssueBulkUpdateDateEndpoint allows a project member (ADMIN or MEMBER) to modify the start_date and target_date of ANY issue across the entire Plane instance, regardless of workspace or project membership. The endpoint fetches issues by ID without filtering by workspace or project, enabling cross-boundary data modification. This vulnerability is fixed in 1.3.0.

PUBLISHED Reserved 2026-04-06 | Published 2026-04-07 | Updated 2026-04-08 | Assigner GitHub_M

Problem types

CWE-639: Authorization Bypass Through User-Controlled Key

Product status

References

github.com/.../plane/security/advisories/GHSA-4q54-h4x9-m329

cve.org (CVE-2026-39374)

nvd.nist.gov (CVE-2026-39374)

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