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This CVE record has been marked for NVD enrichment efforts.
Description
In OpenStack Swift before 2.36.2 and 2.37.2, s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body. The StreamingInput class repeatedly appends an empty buffer and re-reads, causing the proxy-server worker handling the request to become permanently unresponsive with increasing CPU and memory consumption. An authenticated attacker can systematically exhaust all proxy-server workers, resulting in denial of service. The defect was introduced in Swift 2.36.0.
Metrics
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Title: Swift de OpenStack, Description: En OpenStack Swift anterior a 2.36.2 y 2.37.2, el middleware s3api entra en un bucle infinito al procesar un cuerpo de solicitud PUT aws-chunked truncado. La clase StreamingInput añade repetidamente un búfer vacío y vuelve a leer, lo que provoca que el worker del proxy-server que maneja la solicitud se vuelva permanentemente no responsivo con un consumo creciente de CPU y memoria. Un atacante autenticado puede agotar sistemáticamente todos los workers del proxy-server, lo que resulta en una denegación de servicio. El defecto fue introducido en Swift 2.36.0.
Title: Swift de OpenStack, Description: En OpenStack Swift anterior a 2.36.2 y 2.37.2, el middleware s3api entra en un bucle infinito al procesar un cuerpo de solicitud PUT aws-chunked truncado. La clase StreamingInput añade repetidamente un búfer vacío y vuelve a leer, lo que provoca que el worker del proxy-server que maneja la solicitud se vuelva permanentemente no responsivo con un consumo creciente de CPU y memoria. Un atacante autenticado puede agotar sistemáticamente todos los workers del proxy-server, lo que resulta en una denegación de servicio. El defecto fue introducido en Swift 2.36.0.
CVE Translated by NIST7/23/2026 7:10:00 AM
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Title: Swift de OpenStack, Description: En OpenStack Swift anterior a 2.36.2 y 2.37.2, el middleware s3api entra en un bucle infinito al procesar un cuerpo de solicitud PUT aws-chunked truncado. La clase StreamingInput añade repetidamente un búfer vacío y vuelve a leer, lo que provoca que el worker del proxy-server que maneja la solicitud se vuelva permanentemente no responsivo con un consumo creciente de CPU y memoria. Un atacante autenticado puede agotar sistemáticamente todos los workers del proxy-server, lo que resulta en una denegación de servicio. El defecto fue introducido en Swift 2.36.0.
In OpenStack Swift before 2.36.2 and 2.37.2, s3api middleware enters an infinite loop when processing a truncated aws-chunked PUT request body. The StreamingInput class repeatedly appends an empty buffer and re-reads, causing the proxy-server worker handling the request to become permanently unresponsive with increasing CPU and memory consumption. An authenticated attacker can systematically exhaust all proxy-server workers, resulting in denial of service. The defect was introduced in Swift 2.36.0.
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