{"cve":"CVE-2018-16848","nvd":{"published":"2020-06-15T15:15:09.427","modified":"2026-06-17T01:44:54.207","status":"Modified","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-400"],"references":["https://bugs.launchpad.net/mistral/+bug/1785657","https://bugzilla.redhat.com/show_bug.cgi?id=1645332","https://bugs.launchpad.net/mistral/+bug/1785657","https://bugzilla.redhat.com/show_bug.cgi?id=1645332"],"products":["redhat:openstack-mistral"],"source":"nvd","synced_at":"2026-10-19T21:05:42.039641217+00:00"},"epss":{"cve":"CVE-2018-16848","score":0.01185,"percentile":0.6785,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-443j-6p7g-6v4w","url":"https://osv.dev/vulnerability/GHSA-443j-6p7g-6v4w","summary":"OpenStack Mistral DoS","modified":"2024-09-25T20:33:13.320636Z","packages":[{"ecosystem":"PyPI","name":"mistral","purl":"pkg:pypi/mistral","ranges":["<10.0.0"],"fixed":["10.0.0"]}]},{"id":"PYSEC-2020-240","url":"https://osv.dev/vulnerability/PYSEC-2020-240","summary":"","modified":"2026-06-10T17:02:16.283961831Z","packages":[{"ecosystem":"PyPI","name":"mistral","purl":"pkg:pypi/mistral","ranges":["<7.0.4"],"fixed":["7.0.4"]}]}],"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."]}