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CVE-2026-46558

Plane broken access control

8.3 HIGHPublic exploitEPSS 0.40%
  1. Published10 Jun 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected products

Plane< 1.3.1

Remediation

Fixed in
Plane≥ 1.3.1

References

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Frequently asked

Is CVE-2026-46558 being actively exploited?

CVE-2026-46558 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.40%.

How severe is CVE-2026-46558?

CVE-2026-46558 has a CVSS 3.1 base score of 8.3, rated high. EPSS estimates a 0.40% probability of exploitation.

Which products are affected by CVE-2026-46558?

Affected products include Plane.

How do I fix CVE-2026-46558?

Upgrade affected software to a fixed version, for example Plane 1.3.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-46558 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.