CVE-2018-16848
MEDIUM6.5EPSS 0.29%OpenStack Mistral DoS
Published: 5/24/2022Modified: 4/28/2026
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.
Affected packages (3)
- Debian/mistralfrom 0, < 10.0.0~rc1-2
- PyPI/mistralfrom 0, < 10.0.0
- PyPI/mistralfrom 0, < 7.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-16848
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-16848
- PATCHhttps://github.com/openstack/mistral
- WEBhttps://bugs.launchpad.net/mistral/+bug/1785657
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1645332
- WEBhttps://github.com/openstack/mistral/commit/eac23d9e774f658f9d4743c99aa2743eb104c3f9
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/mistral/PYSEC-2020-240.yaml