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Medium 6.5Published Apr 7, 2026

CVE-2026-39374Plane IDOR: Cross-Project Issue Date Modification via Bulk Update Endpoint

Updated under an hour ago ()

Does this affect you?

It affects makeplane plane and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Plane is an an open-source project management tool. Prior to 1.3.0, the IssueBulkUpdateDateEndpoint allows a project member (ADMIN or MEMBER) to modify the start_date and target_date of ANY issue across the entire Plane instance, regardless of workspace or project membership. The endpoint fetches issues by ID without filtering by workspace or project, enabling cross-boundary data modification. This vulnerability is fixed in 1.3.0.

CVSS
6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-639
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
Apr 8, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
makeplane plane
makeplane:plane (from the name)
before 1.3.0
CNA record
plane plane
plane:plane
before 1.3.0
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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