CVE-2016-4911

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-284

Affected software

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

References

http://www.openwall.com/lists/oss-security/2016/05/17/10Mailing List
http://www.openwall.com/lists/oss-security/2016/05/17/11Mailing List
http://www.securityfocus.com/bid/90728Third Party Advisory, VDB Entry
https://bugs.launchpad.net/keystone/+bug/1577558Vendor Advisory
https://review.openstack.org/#/c/311886/Vendor Advisory
https://security.openstack.org/ossa/OSSA-2016-008.htmlPatch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/05/17/10Mailing List
http://www.openwall.com/lists/oss-security/2016/05/17/11Mailing List
http://www.securityfocus.com/bid/90728Third Party Advisory, VDB Entry
https://bugs.launchpad.net/keystone/+bug/1577558Vendor Advisory
https://review.openstack.org/#/c/311886/Vendor Advisory
https://security.openstack.org/ossa/OSSA-2016-008.htmlPatch, Vendor Advisory

Timeline

Published: Jun 13, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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