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Vulnerability Details :

CVE-2026-47838

Summary
Assigner-vmware
Assigner Org ID-dcf2e128-44bd-42ed-91e8-88f912c1401d
Published At-09 Jun, 2026 | 23:50
Updated At-11 Jun, 2026 | 03:55
Rejected At-
Credits

Unauthorized User Impersonation when Using X.509 Client Certificates

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:vmware
Assigner Org ID:dcf2e128-44bd-42ed-91e8-88f912c1401d
Published At:09 Jun, 2026 | 23:50
Updated At:11 Jun, 2026 | 03:55
Rejected At:
▼CVE Numbering Authority (CNA)
Unauthorized User Impersonation when Using X.509 Client Certificates

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

Affected Products
Vendor
VMware (Broadcom Inc.)Spring
Product
Spring Security
Default Status
unaffected
Versions
Affected
  • From 5.7.0 before 5.7.25 (custom)
  • From 5.8.0 before 5.8.27 (custom)
  • From 6.3.0 before 6.3.18 (custom)
  • From 6.4.0 before 6.4.18 (custom)
  • From 6.5.0 before 6.5.11 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-287CWE-287: Improper Authentication
Type: CWE
CWE ID: CWE-287
Description: CWE-287: Improper Authentication
Metrics
VersionBase scoreBase severityVector
3.16.8MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Version: 3.1
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
N/AAn attacker who can present a carefully crafted X.509 certificate with a malformed CN value can impersonate another user via SubjectDnX509PrincipalExtractor.
CAPEC ID: N/A
Description: An attacker who can present a carefully crafted X.509 certificate with a malformed CN value can impersonate another user via SubjectDnX509PrincipalExtractor.
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://spring.io/security/cve-2026-47838
N/A
Hyperlink: https://spring.io/security/cve-2026-47838
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@vmware.com
Published At:10 Jun, 2026 | 00:16
Updated At:10 Jun, 2026 | 19:24

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.8MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Type: Secondary
Version: 3.1
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-287Secondarysecurity@vmware.com
CWE ID: CWE-287
Type: Secondary
Source: security@vmware.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://spring.io/security/cve-2026-47838security@vmware.com
N/A
Hyperlink: https://spring.io/security/cve-2026-47838
Source: security@vmware.com
Resource: N/A

Change History

0
Information is not available yet

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Unauthorized User Impersonation when Using X.509 Client Certificates

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Assigner-VMware by Broadcom
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Matching Score-6
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EPSS-0.41% / 61.57%
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7 Day CHG~0.00%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
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Assigner-VMware by Broadcom
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EPSS-0.04% / 11.60%
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7 Day CHG~0.00%
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Updated-10 Jun, 2026 | 03:58
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Authentication Bypass with Empty Password in Spring LDAP

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Action-Not Available
Vendor-VMware (Broadcom Inc.)
Product-Spring LDAP
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Matching Score-6
Assigner-VMware by Broadcom
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Matching Score-6
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EPSS-0.22% / 45.26%
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7 Day CHG~0.00%
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Updated-15 Apr, 2026 | 00:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Action-Not Available
Vendor-VMware (Broadcom Inc.)
Product-Spring Cloud Config
CWE ID-CWE-287
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Matching Score-6
Assigner-VMware by Broadcom
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Matching Score-6
Assigner-VMware by Broadcom
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Rejected-Not Available
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Matching Score-4
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Matching Score-4
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Vendor-sensiolabssymfony
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CWE ID-CWE-287
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Matching Score-4
Assigner-Palo Alto Networks, Inc.
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CVSS Score-6.8||MEDIUM
EPSS-0.25% / 48.53%
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CWE ID-CWE-287
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Assigner-Red Hat, Inc.
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KEV Added-Not Available
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CWE ID-CWE-287
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Matching Score-4
Assigner-GitHub, Inc.
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Matching Score-4
Assigner-GitHub, Inc.
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EPSS-0.15% / 35.81%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Details not found