{"cve":"CVE-2026-33551","nvd":{"published":"2026-04-10T03:16:02.723","modified":"2026-10-26T22:10:00.163","status":"Analyzed","description":"An issue was discovered in OpenStack Keystone 14 through 26 before 26.1.1, 27.0.0, 28.0.0, and 29.0.0. Restricted application credentials can create EC2 credentials. By using a restricted application credential to call the EC2 credential creation API, an authenticated user with only a reader role may obtain an EC2/S3 credential that carries the full set of the parent user's S3 permissions, effectively bypassing the role restrictions imposed on the application credential. Only deployments that use restricted application credentials in combination with the EC2/S3 compatibility API (swift3 / s3api) are affected.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","score":5.3},"cwes":["CWE-863"],"references":["https://bugs.launchpad.net/keystone/+bug/2142138","https://security.openstack.org/ossa/OSSA-2026-005.html","http://www.openwall.com/lists/oss-security/2026/04/07/12","https://bugs.launchpad.net/keystone/+bug/2142138"],"products":["openstack:keystone"],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-33551","score":0.0022,"percentile":0.12349,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-4phw-6824-6cfp","url":"https://osv.dev/vulnerability/GHSA-4phw-6824-6cfp","summary":"OpenStack Keystone: Restricted application credentials can create EC2 credentials","modified":"2026-06-09T12:00:12.484964469Z","packages":[{"ecosystem":"PyPI","name":"keystone","purl":"pkg:pypi/keystone","ranges":[">=14.0.0 <26.1.1"],"fixed":["26.1.1"]}]},{"id":"PYSEC-2026-202","url":"https://osv.dev/vulnerability/PYSEC-2026-202","summary":"","modified":"2026-06-10T17:01:03.906136175Z","packages":[{"ecosystem":"PyPI","name":"keystone","purl":"pkg:pypi/keystone","ranges":[">=14.0.0 <26.1.1"],"fixed":["26.1.1"]}]}],"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."]}