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Medium

Plane: Cross-Tenant Cycle Issue Hijack via IDOR

Type: advisorySource: Official CVE List1 source record

Plane is an open-source project management tool. Prior to 1.4.0, the cycle-issues endpoint accepts issue UUIDs in the request body without validating that they belong to the caller's workspace. An authenticated user can add issues from any workspace to a cycle they control. If a victim issue is already assigned to a cycle, the operation removes it from the victim's cycle, causing a destructive cross-tenant write. This issue is fixed in 1.4.0.

Announced Source revision 1
Original source ↗

CVE-2026-104969

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-104969

plane

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "makeplane",
    "product": "plane",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.4.0"
      }
    ]
  }
]
Related CVEs
CVE-2026-104969

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#8818 · Revision 1
Added to Heist Feed
Publisher date
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