CVE-2026-30920CWE-345CWE-639CWE-862

OneUptime has broken access control in GitHub App installation flow that allows unauthorized project binding

High · published March 9, 2026

CVSS v3.1
8.6
EPSS
0%
Percentile
12.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00225 · 12.4th percentile
Weaknesses
CWE-345 · Insufficient Verification of Data Authenticity; CWE-639 · Authorization Bypass Through User-Controlled Key; CWE-862 · Missing Authorization
Published
2026-03-09T22:57Z
EPSS history
Timeline
  • 09 MAR 22:57Z
    OneUptime has broken access control in GitHub App installation flow that allows unauthorized project binding
    cvelistv5