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.
CVE-2025-65073
This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 88% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 34(Track)EG Risk 34/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 13%
- KEV
- Not listed
Published
November 17, 2025
Last Modified
June 17, 2026
Advisory Details (2)
Auto-updated Aug 8, 2026oss-security - [OSSA-2025-002] OpenStack Keystone: Unauthenticated access to EC2/S3 token endpoints can grant Keystone authorization (CVE-2025-65073)
http://www.openwall.com/lists/oss-security/2025/11/17/6oss-security - [OSSA-2025-002] OpenStack Keystone: Unauthenticated access to EC2/S3 token endpoints can grant Keystone authorization (CVE PENDING)
https://www.openwall.com/lists/oss-security/2025/11/04/2Vendor Advisories for CVE-2025-65073(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:54757Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenStack Platform 16.2 security advisory
- RHSA-2026:28044Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (openstack-keystone) security update
- RHSA-2026:1958Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (openstack-keystone) security update
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | openstack-swift-0:2.27.1-17.1.20231004180819.el9ost | 2026-06-22 | redhat |
| ubuntu | python3-keystone (2:21.0.1-0ubuntu2.1) @ jammy | 2026-05-21 | ubuntu |
| redhat | openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost | 2026-02-13 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| keystone | 2:18.0.0-3, 2:18.0.0-3+deb11u1 | 2:18.1.0-1+deb11u2 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| keystone | 2:22.0.0-2 | 2:22.0.2-0+deb12u1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| keystone | 2:27.0.0-3 | 2:27.0.0-3+deb13u1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| keystone | 2:27.0.0-3, 2:28.0.0-1, 2:28.0.0~rc1-1, 2:28.0.0~rc1-2, 2:28.0.0~rc1-4 | 2:28.0.0-2 | — |
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| keystone | 12.0.2 ... 28.0.0.0rc1 (52 versions) | 28.0.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 5× in last 7d / 32× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 146 total refreshes for this CVE.
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-24 14:16 UTCEPSS rescore
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-20 22:55 UTCEPSS rescore
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- 2026-08-08 16:36 UTCEPSS rescore
- 2026-08-08 10:27 UTCEG score recompute
- 2026-08-08 10:27 UTCVendor advisory
- 2026-08-07 16:26 UTCEPSS rescore
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
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- 2026-08-03 10:35 UTCEPSS rescore
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- 2026-07-23 03:01 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-07-09 19:09 UTCEPSS rescore
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- 2026-07-07 13:46 UTCEPSS rescore
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- 2026-06-28 04:56 UTCEPSS rescore
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- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
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- 2026-06-23 21:32 UTCEPSS rescore
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- 2026-06-12 23:11 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-65073?
When was CVE-2025-65073 disclosed?
Is CVE-2025-65073 actively exploited?
What is the CVSS score of CVE-2025-65073?
How do I remediate CVE-2025-65073?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-65073
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