{"cve":"CVE-2026-50221","nvd":{"published":"2026-06-23T18:18:04.440","modified":"2026-10-25T23:10:00.167","status":"Analyzed","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-918"],"references":["https://launchpad.net/bugs/2150261","https://security.openstack.org/ossa/OSSA-2026-024.html","https://www.openwall.com/lists/oss-security/2026/06/23/5","http://www.openwall.com/lists/oss-security/2026/06/23/5"],"products":["openstack:swift"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-50221","score":0.00217,"percentile":0.12054,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-h8rc-w822-q8vq","url":"https://osv.dev/vulnerability/GHSA-h8rc-w822-q8vq","summary":"OpenStack Swift vulnerable to authenticated server-side request forgery","modified":"2026-10-01T17:56:18.652305640Z","packages":[{"ecosystem":"PyPI","name":"swift","purl":"pkg:pypi/swift","ranges":["<2.37.2"],"fixed":["2.37.2"]}]},{"id":"PYSEC-2026-4173","url":"https://osv.dev/vulnerability/PYSEC-2026-4173","summary":"OpenStack Swift vulnerable to authenticated server-side request forgery","modified":"2026-10-21T10:00:31.755686774Z","packages":[{"ecosystem":"PyPI","name":"swift","purl":"pkg:pypi/swift","ranges":["<2.37.2"],"fixed":["2.37.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}