CVE-2026-71191

Katalog CVE

CVSS 6.0 · Medium EPSS 0,56%

Kerentanan Incorrect Authorization. Skor CVSS 4.0 6.0 (Medium) menurut mitre.org.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

5 Agustus 2026

Terakhir diubah

9 September 2026

Status NVD

Awaiting Analysis

CVSS 4.0

6.0 (Medium), sumber mitre.org
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/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 · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-863: Incorrect Authorization

EPSS (30 hari)

0,56% peluang dieksploitasi; lebih tinggi dari 45,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://launchpad.net/bugs/2158733
• https://openwall.com/lists/oss-security/2026/07/28/26
• https://security.openstack.org/ossa/OSSA-2026-030.html