CVE-2026-50221

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

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)

OR	cpe:2.3:a:openstack:swift::::::::
	cpe:2.3:a:openstack:swift::::::::
	cpe:2.3:a:openstack:swift::::::::

History

No history.

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)

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