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CVE-2022-2447: A flaw was found in Keystone

47
This month
MEDIUM 6.6WATCHLISTMITIGATEDOWNGRADEDOWNGRADE

CVE-2022-2447 is a medium-severity flaw (CVSS 6.6) affecting keystone, openstack platform, quay. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Why this priority

  • Public exploit reference
  • On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score6.6 (Medium)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededHigh
User interactionNone
EPSS exploit chance0.7% (top 46%)
CISA exploited listNo
WeaknessCWE-324, CWE-672
Published2022-09-01
Last modified2026-06-17
Publisher (CNA): Red Hat, Inc. · Vendor: openstack · redhat

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

openstack keystone MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy keystone || rpm -q keystone || keystone --version
No fixed or unaffected release known
Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.
redhat openstack platform DOWNGRADE
Affected: 16.1 · 16.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 16.1
1. Check installed version
apt-cache policy openstack-platform || rpm -q openstack-platform || openstack-platform --version
2. No fixed release: DOWNGRADE to a release before 16.1 (Debian / Ubuntu)
apt-cache madison openstack-platform sudo apt install openstack-platform=<VERSION_BEFORE_16.1> sudo apt-mark hold openstack-platform
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list openstack-platform sudo dnf downgrade openstack-platform-<VERSION_BEFORE_16.1> sudo dnf versionlock add openstack-platform
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
redhat quay DOWNGRADE
Affected: 3.0.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.0.0
1. Check installed version
apt-cache policy quay || rpm -q quay || quay --version
2. No fixed release: DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)
apt-cache madison quay sudo apt install quay=<VERSION_BEFORE_3.0.0> sudo apt-mark hold quay
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list quay sudo dnf downgrade quay-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add quay
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
redhat storage DOWNGRADE
Affected: 3.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.0
1. Check installed version
apt-cache policy storage || rpm -q storage || storage --version
2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)
apt-cache madison storage sudo apt install storage=<VERSION_BEFORE_3.0> sudo apt-mark hold storage
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list storage sudo dnf downgrade storage-<VERSION_BEFORE_3.0> sudo dnf versionlock add storage
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-2447?

keystone: mitigate or apply the listed mitigation; openstack platform: downgrade or apply the listed mitigation; quay: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-2447 being exploited?

CVE-2022-2447 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-2447 affect?

CVE-2022-2447 affects keystone, openstack platform, quay. Severity is medium (CVSS 6.6). A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly

How urgent is CVE-2022-2447?

Priority 47/100. Public exploit reference; On your watchlist

Software pages

OpenStack vulnerabilities

Related CVEs

References

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