CVE-2026-104969
🔶 mediumSummary
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.
CVSS Score
6.5
Medium
EPSS Score
0.3
Exploit Probability
Published Date
2026-10-05
First Seen: 2026-10-08
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 46.5% of all 365,616 vulnerabilities in our database.
#195,441
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Oct 5, 2026
🔍 Exploitation Status
Poc
Proof-of-concept available
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by
CISA
Last Modified
2026-10-05
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE IDs (Weakness Types)