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TI-2026-34237 Aliases CVE-2026-46558

Authorization bypass in makeplane plane

Priority HIGH 71CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Plane is an open-source project management tool. Prior to version 1.3.1, there is a cross-workspace asset authorization bypass lets any authenticated user read, copy, delete, and overwrite assets in other Plane workspaces. This issue has been patched in version 1.3.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00286 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed plane (makeplane): 1.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
makeplaneplanebefore 1.3.11.3.1Patch availableCNA
  • plane Vendormakeplane Affected before 1.3.1 Fixed in 1.3.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*before 1.3.1Vulnerablemakeplane
  • cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:* Versions before 1.3.1 Vulnerable ·makeplane

Remediation

  • Fix · CNA plane (makeplane) Fixed in 1.3.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46558

References

Exploit 1

Other 1

  • TI-2024-32097 Plane allows server side request forgery via /_next/image endpoint CVSS 3.1CRITICAL 9.3
  • TI-2023-02127 Plane v0.7.1 - Unauthorized access to files CVSS 3.1HIGH 7.5
  • TI-2026-28725 Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching CVSS 3.1HIGH 7.7
  • TI-2026-28361 Plane IDOR: Cross-Project Issue Date Modification via Bulk Update Endpoint CVSS 3.1HIGH 7.7
  • TI-2023-14603 Plane 0.7.1 - Insecure file upload CVSS 3.1HIGH 7.1
  • TI-2026-09315 Plane 1.3.1 - Stored XSS in intake issue description_html CVSS 4.0MEDIUM 6.9
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences