CVE-2026-30920

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

HIGH
8.6
CVSS Score
Published: March 9, 2026 at 10:57 PM UTC
Updated: June 17, 2026 at 10:33 AM UTC
2 products affected across 2 vendorsOneuptimeOneUptime

Using oneuptime by OneUptime?

Get instant alerts when new vulnerabilities affect oneuptime - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.6
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.0.19
v < 10.0.19
Affected range stops below 10.0.19, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-656w-6f6c-m9r6

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-345CWE-639CWE-862

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card