High severity · published Nov 17, 2025
CVE-2025-65073
OpenStack Keystone before 26.0.1, 27.0.0, and 28.0.0 allows a /v3/ec2tokens or /v3/s3tokens request with a valid AWS Signature to provide Keystone authorization
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
OpenStack Keystone before 26.0.1, 27.0.0, and 28.0.0 allows a /v3/ec2tokens or /v3/s3tokens request with a valid AWS Signature to provide Keystone authorization.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Keystone · OpenStack
before 26.0.1; 27.0.0; 28.0.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-65073
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-65073
www.openwall.com
https://www.openwall.com/lists/oss-security/2025/11/04/2
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/11/17/6
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