Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
makeplane plane — Plane: Cross-workspace asset authorization bypass lets any authenticated user read, copy, delete, and overwrite assets in other Plane workspaces
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L N U H H L 8.3 .0028 20.6 —
AFFECTED
Product Versions Fixed
plane < 1.3.1 – —
TIMELINE
May 14 Reserved by GitHub_M
Jun 10 EXPLOIT PUBLISHED — CVE-2026-46558 (makeplane plane). Public exploit reference added.
Jun 10 Published (CNA: GitHub_M)
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| May 14, 2026 | Reserved | Reserved by GitHub_M |
| June 10, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-46558 (makeplane plane). Public exploit reference added. |
| June 10, 2026 | Published | Published (CNA: GitHub_M) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| makeplane | plane | — | < 1.3.1 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-46558 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.