{"id":"CVE-2026-13149","sourceIdentifier":"22e2d327-25fe-45d7-9f0c-dcd23b7108df","published":"2026-06-30T10:16:34.560","lastModified":"2026-10-25T21:10:00.770","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work."},{"lang":"es","value":"brace-expansion hasta la 5.0.6 es vulnerable a denegación de servicio. La función expand() presenta una complejidad de tiempo exponencial en el número de grupos de llaves ’{}’ consecutivos no expansibles. Un atacante que pasa una cadena manipulada a expand(), directa o transitivamente, puede causar un consumo significativo de CPU y el bloqueo del bucle de eventos. La opción max no mitiga esto, ya que limita el tamaño de la salida en lugar del trabajo de recursión."}],"affected":[{"source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df","affectedData":[{"vendor":"juliangruber","product":"brace-expansion","defaultStatus":"unaffected","collectionURL":"https://registry.npmjs.org","packageName":"brace-expansion","repo":"https://github.com/juliangruber/brace-expansion","versions":[{"version":"0","lessThanOrEqual":"5.0.6","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NEGLIGIBLE","Automatable":"YES","Recovery":"USER","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"AMBER"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-30T12:43:12.568372Z","id":"CVE-2026-13149","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df","type":"Secondary","description":[{"lang":"en","value":"CWE-400"},{"lang":"en","value":"CWE-407"}]}],"references":[{"url":"https://github.com/juliangruber/brace-expansion/commit/c7e33ec13ac1a684c116720843ce24e208611754","source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df"},{"url":"https://www.npmjs.com/package/brace-expansion","source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df"}]}