In OpenStack Swift before 2.37.2, proxy-server does not strip internal update headers (X-Container-Host, X-Container-Device, X-Delete-At-Host, X-Delete-At-Device) from client requests before forwarding them to object-servers. An authenticated user with write access can inject these headers to redirect container update requests to an attacker-controlled server, enabling server-side request forgery. The SSRF requests expose internal cluster metadata including storage policy indexes, partition mappings, device names, and when at rest encryption is enabled, cipher text and initialization vectors for the container-level encryption key. The attacker can also cause "ghost listings" in arbitrary containers via the shard-range redirect mechanism.
References
| Link | Resource |
|---|---|
| https://launchpad.net/bugs/2150261 | Exploit Issue Tracking Vendor Advisory |
| https://security.openstack.org/ossa/OSSA-2026-024.html | Patch Vendor Advisory |
| https://www.openwall.com/lists/oss-security/2026/06/23/5 | Mailing List Patch Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/06/23/5 | Mailing List Patch Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
29 Jun 2026, 23:09
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://launchpad.net/bugs/2150261 - Exploit, Issue Tracking, Vendor Advisory | |
| References | () https://security.openstack.org/ossa/OSSA-2026-024.html - Patch, Vendor Advisory | |
| References | () https://www.openwall.com/lists/oss-security/2026/06/23/5 - Mailing List, Patch, Third Party Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2026/06/23/5 - Mailing List, Patch, Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.4 |
| CPE | cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:* | |
| First Time |
Openstack
Openstack swift |
23 Jun 2026, 18:18
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-23 18:18
Updated : 2026-06-29 23:09
NVD link : CVE-2026-50221
Mitre link : CVE-2026-50221
CVE.ORG link : CVE-2026-50221
JSON object : View
Products Affected
openstack
- swift
CWE
CWE-918
Server-Side Request Forgery (SSRF)
