CVE-2020-12690

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-613

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.openwall.com/lists/oss-security/2020/05/07/3Mailing List, Third Party Advisory
https://bugs.launchpad.net/keystone/+bug/1873290Patch, Third Party Advisory
https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3E
https://security.openstack.org/ossa/OSSA-2020-005.htmlVendor Advisory
https://usn.ubuntu.com/4480-1/
https://www.openwall.com/lists/oss-security/2020/05/06/6Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/05/07/3Mailing List, Third Party Advisory
https://bugs.launchpad.net/keystone/+bug/1873290Patch, Third Party Advisory
https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3E
https://security.openstack.org/ossa/OSSA-2020-005.htmlVendor Advisory
https://usn.ubuntu.com/4480-1/
https://www.openwall.com/lists/oss-security/2020/05/06/6Mailing List, Third Party Advisory

Timeline

Published: May 7, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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