{"schemaVersion":3,"id":"CVE-2026-50221","aliases":["GHSA-h8rc-w822-q8vq","PYSEC-2026-4173","UBUNTU-CVE-2026-50221","DEBIAN-CVE-2026-50221"],"status":"published","duplicateOf":null,"title":null,"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.","dates":{"published":"2026-06-23T17:03:32.971Z","modified":"2026-06-23T17:38:26.623Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.4,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":5.3,"severity":"medium","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","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Pypi","score":5.3,"severity":"medium","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","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Pypi","score":5.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","exploitability":7.2,"impact":4.2,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":5.3,"severity":"medium","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","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":5.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","exploitability":7.2,"impact":4.2,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":5.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","exploitability":7.2,"impact":4.2,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":5.3,"severity":"medium","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00217,"percentile":0.11424,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.073,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00144},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00217,"percentile":0.11424}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00144,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00217,"percentile":0.11424}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_086DAEF6AE2C10F2","name":"Exploit Reference (launchpad.net)","source":"reference","url":"https://launchpad.net/bugs/2150261","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-918","name":"Server-Side Request Forgery (SSRF)","description":"The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/918.html"}],"affected":[{"vendor":"debian","product":"swift","name":"swift","label":"swift","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/swift","purlType":"deb","versions":[{"text":"< 2.30.1-0+deb12u2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.35.1-0+deb13u3","noFixRecorded":false,"fixedIn":null},{"text":"< 2.37.1-5","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.30.1-0+deb12u2 | < 2.35.1-0+deb13u3 | < 2.37.1-5","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"swift","name":"swift","label":"swift","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/swift","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"openstack","product":"swift","name":"swift","label":"swift","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.0.0, < 2.35.3","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.36.0, < 2.36.2","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.37.0, < 2.37.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.0.0, < 2.35.3 | ≥ 2.36.0, < 2.36.2 | ≥ 2.37.0, < 2.37.2","eol":null,"hubHref":"/vendor/openstack/swift"},{"vendor":"PyPI","product":"swift","name":"swift","label":"swift","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/swift","purlType":"pypi","versions":[{"text":"< 2.37.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.37.2","eol":null,"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://launchpad.net/bugs/2150261","label":"launchpad.net/bugs/2150261","hostname":"launchpad.net","tags":["Issue Tracking","WEB","Exploit","Vendor Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2026/06/23/5","label":"www.openwall.com/lists/oss-security/2026/06/23/5","hostname":"www.openwall.com","tags":["WEB","REPORT","Mailing List","Patch","Third Party Advisory"]},{"url":"https://security.openstack.org/ossa/OSSA-2026-024.html","label":"security.openstack.org/ossa/OSSA-2026-024.html","hostname":"security.openstack.org","tags":["WEB","Patch","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/23/5","label":"www.openwall.com/lists/oss-security/2026/06/23/5","hostname":"www.openwall.com","tags":["WEB","Mailing List","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50221","label":"nvd.nist.gov/vuln/detail/CVE-2026-50221","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/openstack/swift/commit/75b050fdb1d1a6096f3765faa3b2059e28065d13","label":"github.com/openstack/swift/commit/75b050fdb1d1a6096f3765faa3b2059e28065d13","hostname":"github.com","tags":["WEB"]},{"url":"https://opendev.org/openstack/swift/commit/75b050fdb1d1a6096f3765faa3b2059e28065d13","label":"opendev.org/openstack/swift/commit/75b050fdb1d1a6096f3765faa3b2059e28065d13","hostname":"opendev.org","tags":["WEB"]},{"url":"https://pypi.org/project/swift","label":"pypi.org/project/swift","hostname":"pypi.org","tags":["PACKAGE"]},{"url":"https://github.com/advisories/GHSA-h8rc-w822-q8vq","label":"github.com/advisories/GHSA-h8rc-w822-q8vq","hostname":"github.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-50221","label":"ubuntu.com/security/CVE-2026-50221","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-50221","label":"www.cve.org/CVERecord?id=CVE-2026-50221","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://bugs.launchpad.net/swift/+bug/2150261","label":"bugs.launchpad.net/swift/+bug/2150261","hostname":"bugs.launchpad.net","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-50221","label":"security-tracker.debian.org/tracker/CVE-2026-50221","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-06-23T17:03:32.971Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-23T17:38:26.623Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":32,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T22:53:06.768Z","stale":false,"partial":false}}