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Fencer Vulns
high 8.8

CVE-2020-12690 json

Insufficient Session Expiration in OpenStack Keystone

published 2020-05-06 6 y ago modified 2026-06-17 4 mo ago also GHSA-6m8p-x4qw-gh5j , PYSEC-2020-54 , EUVD-2020-0096

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The list of roles provided for an OAuth1 access token is silently ignored. Thus, when an access token is used to request a keystone token, the keystone token contains every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access.

Patch / fix

  • pypi keystone 15.0.1, 16.0.0
  • openstack keystone 15.0.1
  • keystone Debian 14, Debian 13, Debian 12 2:17.0.0~rc2-1

debian advisories DEBIAN-CVE-2020-12690

  • keystone Ubuntu 18.04 LTS 2:13.0.4-0ubuntu1

ubuntu advisories UBUNTU-CVE-2020-12690

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

  • openstack-keystone openstack 15 1:15.0.1-0.20200512110437.95b2bbe.el8ost
  • python3-keystone openstack 15 1:15.0.1-0.20200512110437.95b2bbe.el8ost
  • openstack-keystone openstack 16 1:16.0.1-0.20200511063421.40cbb7b.el8ost
  • python3-keystone openstack 16 1:16.0.1-0.20200511063421.40cbb7b.el8ost

red hat advisories RHSA-2020:3102RHSA-2020:3105

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-2020-12690 updated cvss 8.8

openstack-keystone: OAuth1 request token authorize silently ignores roles parameter

  • Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) python-keystone, openstack-keystone
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 10 (Newton) python-keystone, openstack-keystone, python-keystone-tests Red Hat OpenStack Platform 13 (Queens) python-keystone, openstack-keystone
    affected: no fix available
  • Red Hat OpenStack Platform 15.0 python3-keystone 15.0.1-0.20200512110437.95b2bbe.el8ost, openstack-keystone 15.0.1-0.20200512110437.95b2bbe.el8ost
    fixed: vendor fix RHSA-2020:3102
  • Red Hat OpenStack Platform 16.0 python3-keystone 16.0.1-0.20200511063421.40cbb7b.el8ost, openstack-keystone 16.0.1-0.20200511063421.40cbb7b.el8ost
    fixed: vendor fix RHSA-2020:3105
  • Red Hat JBoss Fuse 6 openstack-keystone Red Hat Quay 3 quay/quay-rhel8
    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

1.90% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi keystone
<15.0.1
>=16.0.0.0rc1, <16.0.0
15.0.1
16.0.0

Classification

Weakness
  • CWE-613 DEPRECATED: Insufficient Session Expiration

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.