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CVE-2026-71192

Quick assessment

Affected
OpenStack Swift
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenStack Swift是OpenStack基金会开源的一个存储永久静态数据的存储项目。 OpenStack Swift 2.38.0及之前版本存在授权问题漏洞，该漏洞源于S3API中间件未清理S3 API请求中的Swift原生控制头（X-Copy-From、X-Copy-From-Account），可能导致攻击者通过注入这些标头执行服务端复制操作，绕过源对象授权，读取其他租户的私有对象。

CVSS 6.0 · Medium EPSS 0.44% · P35

Affected Version Matrix 4

VendorProduct Version RangeStatus
OpenStack Swift 2.18.0< 2.35.4 affected
2.36.0< 2.36.3 affected
2.37.0< 2.37.3 affected
2.38.0 affected
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I. Basic Information for CVE-2026-71192

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In OpenStack Swift through 2.38.0, the S3API middleware does not sanitize Swift-native control headers (X-Copy-From, X-Copy-From-Account) from S3 API requests when s3_acl=true. An attacker can inject these headers into a signed PUT request targeting their own bucket, causing Swift to perform a server-side copy from another tenant's private object. The source object authorization is bypassed because the S3API middleware has already authorized the request against the destination. The attacker can read any object whose project_id, container name, and object name are known, regardless of the source object's ACLs or ownership. This requires the non-default s3_acl=true configuration.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
OpenStack Swift 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenStack Swift是OpenStack基金会开源的一个存储永久静态数据的存储项目。 OpenStack Swift 2.38.0及之前版本存在授权问题漏洞，该漏洞源于S3API中间件未清理S3 API请求中的Swift原生控制头（X-Copy-From、X-Copy-From-Account），可能导致攻击者通过注入这些标头执行服务端复制操作，绕过源对象授权，读取其他租户的私有对象。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenStack Swift 2.18.0 ~ 2.35.4 -

II. Public POCs for CVE-2026-71192

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III. Intelligence Information for CVE-2026-71192

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Vendor Advisories for CVE-2026-71192 (1)

Mailing List Discussions for CVE-2026-71192 (1)

Same Patch Batch · OpenStack · 2026-08-05 · 5 CVEs total

CVE-2026-71190 8.7 HIGH OpenStack Swift 资源管理错误漏洞
CVE-2026-55707 7.1 HIGH OpenStack Neutron 授权问题漏洞
CVE-2026-71191 6.0 MEDIUM OpenStack Swift 授权问题漏洞
CVE-2026-71201 5.0 MEDIUM OpenStack ironic 授权问题漏洞

IV. Related Vulnerabilities

Same product: Swift
Same vendor: OpenStack
Same weakness: CWE-863

V. Comments for CVE-2026-71192

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