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        "dateReserved": "2026-08-05T05:01:20.566Z",
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                    "lang": "en",
                    "value": "In OpenStack Swift through 2.38.0, S3API middleware does not enforce that semantic x-amz-* headers are covered by the SigV4 signature on presigned URL requests. An attacker who obtains a presigned PUT URL can inject an unsigned X-Amz-Copy-Source header, causing Swift to perform a server-side copy from an arbitrary source object using the signer's authorization context. The attacker can read any object the signer has access to, provided the target project_id, container name, and object name are known. This affects all deployments using the default s3_acl=false configuration."
                }
            ],
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                        "attackRequirements": "PRESENT",
                        "attackVector": "NETWORK",
                        "baseScore": 6,
                        "baseSeverity": "MEDIUM",
                        "privilegesRequired": "LOW",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
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                            "cweId": "CWE-863",
                            "description": "CWE-863 Incorrect Authorization",
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                "dateUpdated": "2026-08-05T05:01:20.971Z"
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                {
                    "tags": [
                        "issue-tracking"
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                    "url": "https://launchpad.net/bugs/2158733"
                },
                {
                    "tags": [
                        "mailing-list",
                        "vendor-advisory"
                    ],
                    "url": "https://openwall.com/lists/oss-security/2026/07/28/26"
                },
                {
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://security.openstack.org/ossa/OSSA-2026-030.html"
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                                "timestamp": "2026-08-06T13:10:29.357812Z",
                                "id": "CVE-2026-71191",
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