Security readout for executives and security teams
Plain-English summary
CVE-2018-1109 is a denial-of-service issue in the Node.js braces package. Versions 2.2.0 and later before 2.3.1 are reported vulnerable to Regular Expression Denial of Service, which can make an application waste CPU processing malicious input.
Executive priority
Treat this as a dependency hygiene and availability risk. Prioritize remediation for internet-facing Node.js services or build systems where untrusted input can reach braces behavior. Lower priority if the vulnerable dependency is unused or unreachable.
Technical view
The source bundle identifies CWE-185 in braces/nodejs-braces, affecting versions from 2.2.0 before 2.3.1. The weakness is ReDoS: regex behavior can be abused to trigger excessive processing time. No CVSS score is provided in the bundle.
Likely exposure
Exposure is most likely in Node.js applications that depend on braces 2.2.0 through versions before 2.3.1, directly or transitively, especially if user-controlled input reaches pattern expansion or matching behavior.
Exploitation context
The bundle does not report known active exploitation, and the CVE is not listed as KEV. Practical impact depends on whether affected braces code is reachable with attacker-controlled input in a production request path.
Researcher notes
Evidence is limited to the CVE description and referenced advisories. The affected range is described as 2.2.0 and above before 2.3.1. No CVSS vector, exploit details, or confirmed exploitation are provided in the bundle.
Mitigation direction
- Inventory direct and transitive use of braces/nodejs-braces.
- Upgrade braces to 2.3.1 or later where applicable.
- Check Snyk and vendor guidance for package-specific remediation.
- Restrict untrusted input reaching pattern expansion logic.
- Apply request timeouts and resource limits around exposed parsing paths.
Validation and detection
- Review package lockfiles for braces versions before 2.3.1.
- Trace whether application inputs can reach braces processing.
- Confirm deployed builds use the remediated dependency version.
- Check monitoring for CPU spikes tied to pattern-like input.
- Document whether exposure is direct, transitive, or unreachable.
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-185: 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-2018-1109 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://bugzilla.redhat.com/show_bug.cgi?id=1547272CVE reference · x_refsource_MISC
- https://snyk.io/vuln/npm:braces:20180219CVE 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.
Incorrect Regular Expression
Incorrect Regular Expression represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.