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CVE-2026-30920— OneUptime has broken access control in GitHub App installation flow that allows unauthorized project binding

Quick assessment

Affected
OneUptime oneuptime
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.

OneUptime是OneUptime开源的一个全面的解决方案。用于监控和管理您的在线服务。 OneUptime 10.0.19之前版本存在安全漏洞，该漏洞源于GitHub App回调信任攻击者控制的参数且缺乏有效授权，可能导致项目绑定被覆盖和仓库枚举。

CVSS 8.6 · High EPSS 0.22% · P11
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I. Basic Information for CVE-2026-30920

Vulnerability Information
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Vulnerability Title
OneUptime has broken access control in GitHub App installation flow that allows unauthorized project binding
Source: CVE Program / CVE List V5
Vulnerability Description
OneUptime is a solution for monitoring and managing online services. Prior to 10.0.19, OneUptime's GitHub App callback trusts attacker-controlled state and installation_id values and updates Project.gitHubAppInstallationId with isRoot: true without validating that the caller is authorized for the target project. This allows an attacker to overwrite another project's GitHub App installation binding. Related GitHub endpoints also lack effective authorization, so a valid installation ID can be used to enumerate repositories and create CodeRepository records in an arbitrary project. This vulnerability is fixed in 10.0.19.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
OneUptime 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OneUptime是OneUptime开源的一个全面的解决方案。用于监控和管理您的在线服务。 OneUptime 10.0.19之前版本存在安全漏洞，该漏洞源于GitHub App回调信任攻击者控制的参数且缺乏有效授权，可能导致项目绑定被覆盖和仓库枚举。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OneUptime oneuptime < 10.0.19 -

II. Public POCs for CVE-2026-30920

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III. Intelligence Information for CVE-2026-30920

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Same Patch Batch · OneUptime · 2026-03-09 · 3 CVEs total

CVE-2026-30887 10.0 CRITICAL OneUptime Affected by Unsandboxed Code Execution in Probe Allows Any Project Member to Ach
CVE-2026-30921 10.0 CRITICAL OneUptime Synthetic Monitor RCE via exposed Playwright browser object

IV. Related Vulnerabilities

Same product: oneuptime
Same vendor: OneUptime
Same weakness: CWE-345

V. Comments for CVE-2026-30920

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