GitHub Advisoryadvisory · PyPI

GHSA-h8rc-w822-q8vq OpenStack Swift vulnerable to authenticated server-side request forgery

MEDIUM Published 2026-06-23 Modified 2026-09-24 Official page ↗
Aliases
CVE-2026-50221
Ecosystem
PyPI
Packages
swift
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-918
Reviewed
2026-09-24

Affected packages

• PyPI swift: < 2.37.2 → fixed in 2.37.2

Description

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.

Related

Alias · CVE (1)

  • CVE-2026-50221 In OpenStack Swift before 2.37.2, proxy-server does not strip internal update headers (X-Container-Host, X-Container-Device,… vulnerability

Weakness · CWE (1)

  • CWE-918 Server-Side Request Forgery weakness

References