Security readout for executives and security teams
Plain-English summary
Older hapi applications could accidentally weaken CORS restrictions when server, connection, and route CORS settings were combined. A setting intended to limit allowed origins could be overridden by less restrictive defaults, such as allowing all origins. This matters most for APIs that relied on CORS policy as a browser-side access control boundary.
Executive priority
Prioritize remediation for internet-facing hapi APIs, especially those handling customer, account, or operational data. This is not documented as actively exploited in the provided sources, but it can silently weaken an intended security boundary.
Technical view
CVE-2015-9243 affects the hapi node module before 11.1.4. When CORS configuration exists at multiple levels, lower-level defaults can override higher-level security restrictions, including origin restrictions. The issue maps to CWE-284 because intended access restrictions may not be enforced as configured.
Likely exposure
Exposure is likely limited to Node.js services using hapi versions before 11.1.4 with CORS configured at multiple levels. Risk is higher where APIs assumed restricted origins would protect sensitive browser-accessible data or actions.
Exploitation context
The provided bundle does not show CVSS scoring, public exploitation details, or CISA KEV listing. Treat active exploitation as unconfirmed. The vulnerability is a configuration-merging flaw, so practical impact depends on application CORS settings and exposed API behavior.
Researcher notes
Focus validation on multi-level CORS configuration inheritance in hapi before 11.1.4. Evidence provided describes origin restrictions being overwritten by less restrictive defaults. No exploit recipe, affected deployment count, or complete severity scoring is included in the bundle.
Mitigation direction
- Upgrade hapi to version 11.1.4 or later where feasible.
- Review vendor advisories and release notes for exact fixed-version guidance.
- Audit server, connection, and route CORS settings for unexpected inherited defaults.
- Avoid relying on CORS alone for authorization or sensitive access control.
- Confirm authentication and authorization are enforced server-side on affected routes.
Validation and detection
- Inventory deployed Node.js services using the hapi module.
- Identify services running hapi versions earlier than 11.1.4.
- Review CORS configuration at server, connection, and route levels.
- Check whether restricted origins become permissive after configuration merging.
- Test browser-facing API behavior from allowed and untrusted origins.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2015-9243 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/hapijs/hapi/issues/2980CVE reference · x_refsource_MISC
- https://nodesecurity.io/advisories/65CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.