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CVE

CVE-2026-30920

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

CVE-2026-30920

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

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.6
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
C
H
U
8.6
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30920.json, https://github.com/OneUptime/oneuptime/security/advisories/GHSA-656w-6f6c-m9r6, https://nvd.nist.gov/vuln/detail/CVE-2026-30920

Severity

8.6

CVSS Score
0
10

Basic Information

Base CVSS
8.6
EPSS Probability
0.00011%
EPSS Percentile
0.0153%
Introduced Version
0
Fix Available
24278095d288a55e23d2057789966b0c2af84350

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