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CVE-2026-123184— Incorrect Authorization in Altium 365 Git Service Allows Unauthorized Repository Writes

Quick assessment

Affected
Altium Altium 365
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.

Altium 365 Git 服务中存在一个授权错误漏洞。当用户向项目仓库执行推送（push）操作时，权限检查未能正确评估所需的访问级别，导致任何拥有该项目任意级别访问权限的用户都能通过该检查。因此，仅拥有项目只读（查看）权限的已认证用户，也可能向该项目的 Git 仓库写入数据。 值得注意的是，读取权限的评估是正确的，未受此问题影响；且利用该漏洞需要攻击者拥有一个已认证且对目标项目已具备某种访问权限的账户。该问题已在服务层通过 Altium 365 完成修复，无需客户采取任何操作。本地部署的 Altium Ente

CVSS 7.2 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
Altium Altium 365 unspecified affected
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I. Basic Information for CVE-2026-123184

Vulnerability Information
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Vulnerability Title
Incorrect Authorization in Altium 365 Git Service Allows Unauthorized Repository Writes
Source: CVE Program / CVE List V5
Vulnerability Description
An incorrect authorization vulnerability exists in the Altium 365 Git Service. The permission check performed when a user pushes to a project repository did not correctly evaluate the required access level, so the check passed for any user holding any level of access to the project. As a result, an authenticated user with view-only access to a project could write to that project's git repository. Read access was evaluated correctly and was not affected, and exploitation requires an authenticated account with existing access to the target project. The issue has been remediated in Altium 365 at the service level and no customer action is required. On-premise Altium Enterprise Server is not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Altium Altium 365 unspecified -

II. Public POCs for CVE-2026-123184

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III. Intelligence Information for CVE-2026-123184

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IV. Related Vulnerabilities

Same product: Altium 365
Same vendor: Altium
Same weakness: CWE-863