How severe is CVE-2026-46558?

CVE-2026-46558 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-46558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46558?

CVE-2026-46558 affects Plane. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-46558?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-46558 have an EU (EUVD) identifier?

Yes. CVE-2026-46558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36066.

When was CVE-2026-46558 published?

CVE-2026-46558 was published on 2026-06-10 and last updated on 2026-06-17.

CVE-2026-46558

CVE-2026-46558 is a high-severity vulnerability in Plane with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36066
Weakness: CWE-639
Affected product: Plane
Published: 2026-06-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-46558?: 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.
How severe is CVE-2026-46558?: CVE-2026-46558 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-46558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46558?: CVE-2026-46558 affects Plane. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-46558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-46558 have an EU (EUVD) identifier?: Yes. CVE-2026-46558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36066.
When was CVE-2026-46558 published?: CVE-2026-46558 was published on 2026-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*

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