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Fencer Vulns
medium 5.9

CVE-2019-3866 json

An information-exposure vulnerability was discovered where openstack-mistral's undercloud log files containing clear-text information were…

published 2019-11-08 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-13480

cvss
5.9
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

An information-exposure vulnerability was discovered where openstack-mistral's undercloud log files containing clear-text information were made world readable. A malicious system user could exploit this flaw to access sensitive user information.

Patch / fix

  • mistral Debian 14, Debian 13, Debian 12 5.1.0-2
  • python-oslo.utils Debian 14, Debian 13, Debian 12 3.41.3-1
  • python-mistral-lib Debian 14, Debian 13, Debian 12 1.2.0-3

debian advisories DEBIAN-CVE-2019-3866

  • python-mistral-lib Ubuntu Pro 18.04 LTS 0.4.0-0ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2019-3866

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python3-mistral openstack 16 9.0.2-0.20191125120837.6651519.el8ost
  • python3-keystone openstack 16 1:16.0.1-0.20191210095025.bd3f637.el8ost
  • openstack-mistral openstack 16 9.0.2-0.20191125120837.6651519.el8ost
  • openstack-keystone openstack 16 1:16.0.1-0.20191210095025.bd3f637.el8ost
  • openstack-mistral-all openstack 16 9.0.2-0.20191125120837.6651519.el8ost
  • openstack-mistral-api openstack 16 9.0.2-0.20191125120837.6651519.el8ost
  • openstack-mistral-common openstack 16 9.0.2-0.20191125120837.6651519.el8ost
  • openstack-mistral-engine openstack 16 9.0.2-0.20191125120837.6651519.el8ost

red hat advisories RHEA-2020:0283

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-3866 updated cvss 5.9

openstack-mistral: information disclosure in mistral log

  • Red Hat OpenStack Platform 10 (Newton) openstack-mistral, python-mistral-tests, openstack-mistral-all, openstack-mistral-api, openstack-mistral-common, openstack-mistral-engine, +2 more Red Hat OpenStack Platform 13 (Queens) python-mistral, openstack-mistral, python-mistral-tests, openstack-mistral-all, openstack-mistral-api, openstack-mistral-common, +3 more Red Hat OpenStack Platform 14 (Rocky) python-mistral, python-mistral-tests, openstack-mistral-all, openstack-mistral-api, openstack-mistral-common, openstack-mistral-engine, +2 more Red Hat OpenStack Platform 15 (Stein) python3-mistral, openstack-mistral-all, openstack-mistral-api, openstack-mistral-common, openstack-mistral-engine, openstack-mistral-executor, +2 more
    affected: workaround, no fix planned “Plain text information can be masked by ensuring that all mistral log files are not world readable.”
  • Red Hat Quay v3 quay/quay-rhel8 v3.4.0-51, quay/clair-rhel8 v3.4.0-25, quay/quay-builder-rhel8 v3.4.0-18, quay/quay-operator-bundle v3.4.0-89, quay/quay-operator-rhel8 v3.4.0-132, quay/quay-bridge-operator-bundle v3.4.0-3, +5 more
    fixed: vendor fix “Plain text information can be masked by ensuring that all mistral log files are not world readable.” RHSA-2021:0420
  • Red Hat OpenStack Platform 16.0 python3-mistral 9.0.2-0.20191125120837.6651519.el8ost, openstack-mistral 9.0.2-0.20191125120837.6651519.el8ost, openstack-mistral-all 9.0.2-0.20191125120837.6651519.el8ost, openstack-mistral-api 9.0.2-0.20191125120837.6651519.el8ost, openstack-mistral-common 9.0.2-0.20191125120837.6651519.el8ost, openstack-mistral-engine 9.0.2-0.20191125120837.6651519.el8ost, +3 more
    fixed: vendor fix “Plain text information can be masked by ensuring that all mistral log files are not world readable.” RHEA-2020:0283
  • Red Hat OpenStack 16 Cinderlib future 0.16.0-6.el8ost, subunit 1.3.0-7.el8ost, numpy 1.15.1-2.2.el8ost, pyparsing 2.3.1-1.el8ost, python-ddt 1.0.1-4.el8ost, python-pbr 5.1.2-2.el8ost, +232 more Red Hat OpenStack Platform 16.0 zstd 1.3.4-2.el8ost, crudini 0.9-6.el8ost, etcd 3.2.21-2.el8ost, hdf5 1.8.20-7.el8ost, hiera 3.3.1-5.el8ost, novnc 1.1.0-1.el8ost, +1096 more Red Hat OpenStack Platform 16.1 python3-mistral, openstack-mistral-all, openstack-mistral-api, openstack-mistral-common, openstack-mistral-engine, openstack-mistral-executor, +2 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 5.9 CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • [UNKNOWN] openstack-mistral

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.