GitHub Advisoryadvisory · PyPI
GHSA-h8rc-w822-q8vq OpenStack Swift vulnerable to authenticated server-side request forgery
MEDIUM
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
- https://nvd.nist.gov/vuln/detail/CVE-2026-50221 advisory
- https://github.com/openstack/swift/commit/75b050fdb1d1a6096f3765faa3b2059e28065d13 web
- https://launchpad.net/bugs/2150261 web
- https://opendev.org/openstack/swift/commit/75b050fdb1d1a6096f3765faa3b2059e28065d13 web
- https://security.openstack.org/ossa/OSSA-2026-024.html web
- https://www.openwall.com/lists/oss-security/2026/06/23/5 web
- http://www.openwall.com/lists/oss-security/2026/06/23/5 web