Report: CVE-2026-49017 - OpenStack Swift S3API Middleware Infinite Loop Denial of Service Vulnerability - 2025 Update
CVE ID :CVE-2026-49017 Published : May 27, 2026, 2:16 a.m. | 35 minutes ago 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. Severity: 7.1 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...