CVE-2026-30920 json
OneUptime has broken access control in GitHub App installation flow that allows unauthorized project binding
published 2026-03-09 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-10432 , GHSA-656w-6f6c-m9r6
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm @oneuptime/common 10.0.19
- hackerbay oneuptime 10.0.19
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/OneUptime/oneuptime/security/advisories/GHSA-656w-6f6c-m9r6 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |
| GitHub | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @oneuptime/common | <10.0.19 |
10.0.19 |
Affected products
- OneUptime oneuptime
Classification
References
-
github.com
/OneUptime/oneuptime/security/advisories/GHSA-656w-6f6c-m9r6
web, exploit, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-30920
advisory
-
github.com
/OneUptime/oneuptime
package
-
github.com
/OneUptime/oneuptime/blob/master/Common/Server/API/GitHubAPI.ts#L127-L165
web
-
github.com
/OneUptime/oneuptime/blob/master/Common/Server/API/GitHubAPI.ts#L179-L258
web
-
github.com
/OneUptime/oneuptime/blob/master/Common/Server/API/GitHubAPI.ts#L260-L356
web
-
github.com
/OneUptime/oneuptime/blob/master/Common/Server/API/GitHubAPI.ts#L34-L112
web
-
github.com
/OneUptime/oneuptime/blob/master/Common/Server/API/GitHubAPI.ts#L73-L79
web
-
github.com
/OneUptime/oneuptime/blob/master/Common/Server/Middleware/UserAuthorization.ts#L205-L211
web
-
github.com
/OneUptime/oneuptime/blob/master/Common/Server/Utils/CodeRepository/GitHub/GitHub.ts#L347-L425
web
Sources
- CVE List CVE-2026-30920
- GitHub Advisory GHSA-656w-6f6c-m9r6
- NVD CVE-2026-30920
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.