CVE-2026-46558

Plane: Cross-workspace asset authorization bypass lets any authenticated user read, copy, delete, and overwrite assets in other Plane workspaces

HIGH
8.3
CVSS Score
Published: June 10, 2026 at 03:42 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
2 products affected across 2 vendorsPlanePlane

Using plane by makeplane?

Get instant alerts when new vulnerabilities affect plane - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versionsv < 1.3.1
Affected range stops below 1.3.1, so it looks safe — our inference, not a vendor statement
v < 1.3.1
Affected range stops below 1.3.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/makeplane/plane/security/advisories/GHSA-qw87-v5w3-6vxx
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/makeplane/plane/releases/tag/v1.3.1

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.3HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-639CWE-862

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card