CVE-2026-86174— Plane through 1.4.2 Arbitrary Comment Write via Public Deploy Board
Quick assessment
Affected
makeplane plane
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Plane 在 1.4.2 及之前版本中，未在公开评论端点验证 issue 是否属于该部署看板（deploy board）所属的项目。经过身份验证的攻击者可以通过向部署看板的公开评论端点提供 issue_id 参数，从而向任意工作区中的任意 issue 发布评论。
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
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I. Basic Information for CVE-2026-86174
Vulnerability Information
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Vulnerability Title
Plane through 1.4.2 Arbitrary Comment Write via Public Deploy Board
Source: CVE Program / CVE List V5
Vulnerability Description
Plane through 1.4.2 fails to validate that issues belong to the deploy board's project in the public comment endpoint. Authenticated attackers can post comments to arbitrary issues across workspaces by supplying an issue_id parameter to the public deploy-board comment endpoint.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-86174
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-86174 (1)
Vendor Advisories for CVE-2026-86174 (1)
Vendor Pages for CVE-2026-86174 (1)
Other References for CVE-2026-86174 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-86174
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