High severity8.8NVD Advisory· Published May 7, 2020· Updated Jun 17, 2026
CVE-2020-12691
CVE-2020-12691
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
keystonePyPI | < 15.0.1 | 15.0.1 |
keystonePyPI | >= 16.0.0, < 16.0.1 | 16.0.1 |
Affected products
5- OpenStack/Keystonedescription
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Patches
Vulnerability mechanics
References
16- bugs.launchpad.net/keystone/+bug/1872733nvdPatchThird Party AdvisoryWEB
- www.openwall.com/lists/oss-security/2020/05/07/2nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-4427-7f3w-mqv6ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-12691ghsaADVISORY
- security.openstack.org/ossa/OSSA-2020-004.htmlnvdVendor AdvisoryWEB
- usn.ubuntu.com/4480-1/nvdThird Party Advisory
- www.openwall.com/lists/oss-security/2020/05/06/5nvdMailing ListThird Party AdvisoryWEB
- github.com/openstack/keystone/commit/37e9907a176dad6843819b1bec4946c3aecc4548ghsaWEB
- github.com/openstack/keystone/commit/40cbb7bebd50276412daa1981ff5a7c7b3b899a5ghsaWEB
- github.com/openstack/keystone/commit/95b2bbeab113d9f04d1c81f7f1b48bf692bce979ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-55.yamlghsaWEB
- lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3EghsaWEB
- lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3EghsaWEB
- usn.ubuntu.com/4480-1ghsaWEB
- lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3Envd
- lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3Envd
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