Vulnerability details
CVE-2026-90460
OpenStack Keystone
CVSS 4.0
7.6High
Official description
An issue was discovered in OpenStack Keystone before 29.0.3. Tokens obtained via delegated authentication methods (EC2 credentials, application credentials, OAuth1 access tokens, and trusts) are not blocked from creating, modifying, or deleting credentials via the /v3/credentials API. EC2-derived tokens can additionally read credential blobs, exposing TOTP MFA seeds and other secrets. Also, PATCH /v3/credentials does not validate the requested post-update project_id, allowing any delegated token to move a credential to an unauthorized project. All Keystone deployments using delegated authentication are affected.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.6High | 4.0 | CVEProject cvelistV5 (CNA) (mitre) | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| OpenStack | Keystone | 13.0.0 ≤ v < 27.0.3 | CVEProject cvelistV5 (CNA) |
| OpenStack | Keystone | 28.0.0 ≤ v < 28.0.3 | CVEProject cvelistV5 (CNA) |
| OpenStack | Keystone | 29.0.0 ≤ v < 29.0.3 | CVEProject cvelistV5 (CNA) |
References and advisories
4
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-09-12
- Last updated
- 2026-10-13
- State
- Published
- Assigner (CNA)
- mitre
Exploit prediction (EPSS)
0.57%
Probability of exploitation in 30 days
47.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-863Incorrect Authorization