CVE-2015-9243
Unsafe Merging of CORS Configuration Conflict in hapi
CVE-2015-9243 is a medium vulnerability (CVSS 5.9) in Hackerone Hapi Node Module, published May 29, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.02%, the 63rd percentile. Fixed in hapi 11.1.4.
When server level, connection level or route level CORS configurations in hapi node module before 11.1.4 are combined and when a higher level config included security restrictions (like origin), a higher level config that included security restrictions (like origin) would have those restrictions overridden by less restrictive defaults (e.g. origin defaults to all origins *).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
When server level, connection level or route level CORS configurations in hapi node module before 11.1.4 are combined and when a higher level config included security restrictions (like origin), a higher level config that included security restrictions (like origin) would have those restrictions overridden by less restrictive defaults (e.g. origin defaults to all origins *).
- Record
CVE-2015-9243- CVSS 3.0
- 5.9 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-284, CWE-254
- Updated
- 2026-11-02
CVE List No score
When server level, connection level or route level CORS configurations in hapi node module before 11.1.4 are combined and when a higher level config included security restrictions (like origin), a higher level config that included security restrictions (like origin) would have those restrictions overridden by less restrictive defaults (e.g. origin defaults to all origins *).
- Record
CVE-2015-9243- Weakness
- CWE-284
- Updated
- 2026-11-02
EUVDEUVD-2020-1119 No score
When server level, connection level or route level CORS configurations in hapi node module before 11.1.4 are combined and when a higher level config included security restrictions (like origin), a higher level config that included security restrictions (like origin) would have those restrictions overridden by less restrictive defaults (e.g. origin defaults to all origins *).
- Record
EUVD-2020-1119- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j3g2-m5jj-6336 No score
Unsafe Merging of CORS Configuration Conflict in hapi
Versions of hapi prior to 11.1.4 are affected by a vulnerability that causes route-level CORS configuration to override connection-level or server-level CORS defaults. This may result in a situation where CORS permissions are less restrictive than intended.
Recommendation
Update hapi to version 11.1.4 or later.
- Record
GHSA-j3g2-m5jj-6336- Weakness
- CWE-284
- Updated
- 2026-11-02
OSVGHSA-j3g2-m5jj-6336 No score
Unsafe Merging of CORS Configuration Conflict in hapi
Versions of hapi prior to 11.1.4 are affected by a vulnerability that causes route-level CORS configuration to override connection-level or server-level CORS defaults. This may result in a situation where CORS permissions are less restrictive than intended.
Recommendation
Update hapi to version 11.1.4 or later.
- Record
GHSA-j3g2-m5jj-6336- Weakness
- CWE-284
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
hapinpm |
before 11.1.4 | 11.1.4 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |