Security readout for executives and security teams
Plain-English summary
CVE-2020-36604 affects the JavaScript hoek library. Vulnerable versions can allow prototype poisoning through the clone function, potentially letting attacker-controlled data alter application object behavior. The CVSS score is high, but attack complexity is rated high. Business urgency depends on whether affected hoek versions are present in internet-facing Node.js applications or dependencies.
Executive priority
Prioritize remediation for externally reachable Node.js services and applications handling untrusted input. Treat as high severity, but validate actual dependency exposure before emergency response because active exploitation is not supported by the provided sources.
Technical view
The issue is CWE-1321 prototype poisoning in hoek before 8.5.1 and 9.x before 9.0.3. The CVSS v3.1 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating unauthenticated network reachability with high complexity and potential full confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in Node.js applications or packages that directly or transitively resolve hoek below 8.5.1, or 9.x below 9.0.3. The provided CVE data does not list specific downstream products or CPEs.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Exploitability depends on whether application-controlled input reaches vulnerable clone behavior in a meaningful security context.
Researcher notes
The important research question is data reachability into hoek clone usage. The CVE record names the vulnerable version ranges and CWE, but does not provide affected CPEs, downstream product mapping, or exploitation evidence.
Mitigation direction
- Upgrade hoek to 8.5.1, 9.0.3, or a later non-vulnerable release.
- Check lockfiles for transitive vulnerable hoek resolutions.
- Refresh dependency locks after upgrading parent packages.
- Consult vendor or package-maintainer guidance before accepting compensating controls.
Validation and detection
- Generate an SBOM or dependency tree for production builds.
- Confirm no resolved hoek versions are below 8.5.1 or vulnerable 9.x below 9.0.3.
- Review SCA results for CVE-2020-36604 across repositories and containers.
- Run unit and regression tests after dependency updates.
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-1321: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2020-36604 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
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/hapijs/hoek/issues/352CVE reference · x_refsource_MISC
- https://security.snyk.io/vuln/SNYK-JS-HAPIHOEK-548452%29CVE 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.
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.