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01 Record

CVE-2026-59354

Spring Security OAuth2 Authorization Server: Insufficient validation of Dynamic Client Registration metadata

CriticalPUBLISHEDCNA: vmware
CNA base score9.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

02 Description

Spring Security OAuth2 Authorization Server: Insufficient validation of Dynamic Client Registration metadata

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.49% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 41.8% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-09-01.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-08-27 06:33Z2 MO AGO
Last updated
2026-08-28 03:55Z2 MO AGO
Reserved
2026-07-04
Assigning CNA
vmware
Record state
PUBLISHED
Severity
Critical (CVSS 9.6)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.2
Document digest
cdcb09b16fd1ac7e8ff6ce69f138f9afdb5a6247e6987a76f2f0a92e63103c14

05 Affected products

VendorProductVersionsPlatforms
VMware by BroadcomSpring Security (OAuth2 Authorization Server module)7.0.0 to 7.0.4—

06 References

07 Remediation

Upgrade to Spring Security 7.0.5 or later.