Security readout for executives and security teams
Plain-English summary
A vulnerable sshpk Node.js dependency can spend excessive processing time parsing specially crafted invalid public keys. The business impact is service slowdown or denial of service if an exposed application parses untrusted public-key input with affected versions.
Executive priority
Treat this as a dependency hygiene and availability risk. Prioritize internet-facing or authentication-adjacent services that parse public keys, but do not treat it as confirmed exploited based on the provided evidence.
Technical view
CVE-2018-3737 is a regular-expression denial-of-service issue in the HackerOne sshpk Node module. Sources identify versions up to and including 1.13.1 as affected. The issue maps to CWE-770 and concerns resource consumption during invalid public-key parsing.
Likely exposure
Exposure is likely where Node.js applications depend on sshpk versions up to 1.13.1 and accept public keys from users, integrations, APIs, or configuration sources that are not fully trusted.
Exploitation context
The source bundle does not show active exploitation, and KEV is false. Practical risk depends on whether vulnerable sshpk parsing is reachable through attacker-controlled key material.
Researcher notes
Evidence is limited to the CVE description, affected range, CWE mapping, and HackerOne reference. No CVSS score, exploit status, or detailed fix text is included in the supplied bundle.
Mitigation direction
- Inventory applications and lockfiles for sshpk versions up to 1.13.1.
- Update sshpk to a non-affected release per maintainer or package guidance.
- Review transitive dependencies that may bundle vulnerable sshpk versions.
- Limit public-key parsing to trusted inputs where feasible.
- Monitor exposed services for abnormal CPU usage or request latency.
Validation and detection
- Check package manifests and lockfiles for sshpk dependency versions.
- Confirm whether application routes parse externally supplied public keys.
- Test only with safe regression cases that verify invalid keys are rejected quickly.
- Review dependency scanner results for CVE-2018-3737 findings.
- Document reachable and non-reachable uses for vulnerability management records.
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-770: 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-2018-3737 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://hackerone.com/reports/319593CVE 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.
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.