CVE-2026-104969 (GCVE-0-2026-104969)
Vulnerability from cvelistv5 – Published: 2026-10-05 16:57 – Updated: 2026-10-05 17:48
VLAI
EPSS
VEX
Title
Plane: Cross-Tenant Cycle Issue Hijack via IDOR
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 17:47 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/makeplane/plane/security/advis… | x_refsource_CONFIRM |
| https://github.com/makeplane/plane/pull/9269 | x_refsource_MISC |
| https://github.com/makeplane/plane/commit/81d9873… | x_refsource_MISC |
| https://github.com/makeplane/plane/releases/tag/v1.4.0 | x_refsource_MISC |
Impacted products
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| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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