{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-13763","sourceIdentifier":"ff89ba41-3aa1-4d27-914a-91399e9639e5","published":"2026-06-29T20:17:33.283","lastModified":"2026-10-25T21:10:00.770","vulnStatus":"Analyzed","cveTags":[{"sourceIdentifier":"ff89ba41-3aa1-4d27-914a-91399e9639e5","tags":["exclusively-hosted-service"]}],"descriptions":[{"lang":"en","value":"Inconsistent interpretation of HTTP/2 requests in AWS Application Load Balancer with AWS WAF enabled might allow remote actors to bypass AWS WAF managed rule body inspection via crafted HTTP/2 requests that fragment the request body across frames so that only a partial body is inspected. This issue only impacts HTTP/2 ALB target groups.\n\n\n\nTo remediate this issue, customers should enable the \"Inspect after sufficient data\" target group configuration associated to an ALB load balancer. Refer to: ( https://docs.aws.amazon.com/elasticloadbalancing/latest/application/edit-target-group-attributes.html#waf-http2-inspection )"},{"lang":"es","value":"La interpretación inconsistente de solicitudes HTTP/2 en AWS Application Load Balancer con AWS WAF habilitado podría permitir a actores remotos eludir la inspección del cuerpo de reglas gestionadas de AWS WAF a través de solicitudes HTTP/2 manipuladas que fragmentan el cuerpo de la solicitud a través de tramas, de modo que solo se inspecciona un cuerpo parcial. Este problema solo afecta a los grupos objetivo de ALB HTTP/2.\n\nPara remediar este problema, los clientes deberían habilitar la configuración del grupo objetivo ’Inspeccionar después de datos suficientes’ asociada a un balanceador de carga de ALB. Consulte: ( https://docs.aws.amazon.com/elasticloadbalancing/latest/application/edit-target-group-attributes.html#waf-http2-inspection )"}],"affected":[{"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5","affectedData":[{"vendor":"AWS","product":"AWS Application Load Balancer","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5","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:N/SC:H/SI:H/SA:H/E:X/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:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":7.9,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","exploitMaturity":"NOT_DEFINED","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":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-29T20:50:35.215174Z","id":"CVE-2026-13763","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"ff89ba41-3aa1-4d27-914a-91399e9639e5","type":"Secondary","description":[{"lang":"en","value":"CWE-444"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:amazon:application_load_balancer:-:*:*:*:*:*:*:*","matchCriteriaId":"4208D004-6AD5-47FB-9C5B-5C2EC79AE558"}]}]}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-048-aws/","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5","tags":["Vendor Advisory"]},{"url":"https://docs.aws.amazon.com/elasticloadbalancing/latest/application/edit-target-group-attributes.html#waf-http2-inspection","source":"ff89ba41-3aa1-4d27-914a-91399e9639e5","tags":["Product"]}]}}