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NVD / CVE Program· CNA mitre

CVE-2020-12691: An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0.

Noroxi assessment

Priority: Monitor (action score 36/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 4.9% (FIRST EPSS); higher than 92% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: keystone (Debian:10) 2:14.2.0-0+deb10u1; keystone (Debian:12) 2:17.0.0~rc2-1; keystone (PyPI) 16.0.1, 15.0.1.

Low priority for now. Upgrade to keystone (Debian:10) 2:14.2.0-0+deb10u1; keystone (Debian:12) 2:17.0.0~rc2-1; keystone (PyPI) 16.0.1, 15.0.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any authenticated user can create an EC2 credential for themselves for a project that they have a specified role on, and then perform an update to the credential user and project, allowing them to masquerade as another user. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
May 6, 2020
Updated
Jun 16, 2026
EPSS
4.9% · 92th percentile

Report tools

JSON

Action score

36

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 4.9%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
openstackkeystone
canonicalubuntu linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux18.04
  • openstack keystonebefore 15.0.1
  • openstack keystone16.0.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:10keystonebefore 2:14.2.0-0+deb10u12:14.2.0-0+deb10u1
Debian:12keystonebefore 2:17.0.0~rc2-12:17.0.0~rc2-1
PyPIkeystonefrom 16.0.0 · before 16.0.116.0.1
PyPIkeystonebefore 15.0.115.0.1
Red Hat:openstack:10::el7openstack-keystonebefore 1:10.0.3-8.el7ost1:10.0.3-8.el7ost
Red Hat:openstack:10::el7python-keystonebefore 1:10.0.3-8.el7ost1:10.0.3-8.el7ost
Red Hat:openstack:10::el7python-keystone-testsbefore 1:10.0.3-8.el7ost1:10.0.3-8.el7ost
Red Hat:openstack:13::el7openstack-keystonebefore 1:13.0.4-3.el7ost1:13.0.4-3.el7ost
Red Hat:openstack:13::el7python-keystonebefore 1:13.0.4-3.el7ost1:13.0.4-3.el7ost
Red Hat:openstack:15::el8openstack-keystonebefore 1:15.0.1-0.20200512110437.95b2bbe.el8ost1:15.0.1-0.20200512110437.95b2bbe.el8ost
Red Hat:openstack:15::el8python3-keystonebefore 1:15.0.1-0.20200512110437.95b2bbe.el8ost1:15.0.1-0.20200512110437.95b2bbe.el8ost
Red Hat:openstack:16::el8openstack-keystonebefore 1:16.0.1-0.20200511063421.40cbb7b.el8ost1:16.0.1-0.20200511063421.40cbb7b.el8ost
Red Hat:openstack:16::el8python3-keystonebefore 1:16.0.1-0.20200511063421.40cbb7b.el8ost1:16.0.1-0.20200511063421.40cbb7b.el8ost

Same product

openstack: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-12690An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0.
    36Monitor
  • CVE-2019-19687OpenStack Keystone 15.0.0 and 16.0.0 is affected by Data Leakage in the list credentials API.
    36Monitor
  • CVE-2026-43000An issue was discovered in OpenStack Keystone before 29.0.2.
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2012-1572Nov 12, 2019 · OpenStack Keystone: extremely long passwords can crash Keystone by exhausting stack space
    30Monitor
  • ← EarlierCVE-2020-12689May 6, 2020 · An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0.
    35Monitor
  • Later →CVE-2020-12692May 6, 2020 · An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0.
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:keystone2:17.0.0~rc2-1 · Debian:12Package registry (OSV)
PyPI:keystone15.0.1Package registry (OSV)
PyPI:keystone16.0.1Package registry (OSV)
red hat:openstack-keystone1:13.0.4-3.el7ost · Red Hat:openstack:13::el7Package registry (OSV)
red hat:python-keystone1:13.0.4-3.el7ost · Red Hat:openstack:13::el7Package registry (OSV)
red hat:python-keystone-tests1:10.0.3-8.el7ost · Red Hat:openstack:10::el7Package registry (OSV)
red hat:python3-keystone1:15.0.1-0.20200512110437.95b2bbe.el8ost · Red Hat:openstack:15::el8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-863 · Incorrect Authorization

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records