CVE-2026-41847: CWE-284: Improper Access Control in Spring Spring Framework
Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL. Affected versions: Spring Framework 5.3.0 through 5.3.48.
AI Analysis
Technical Summary
CVE-2026-41847 is an improper access control vulnerability (CWE-284) in the Spring Framework's WebFlux module when using the Kotlin Router DSL. It affects versions 5.3.0 through 5.3.48. The vulnerability could allow unauthorized access bypassing intended security controls. The CVSS 3.1 base score is 4.8, reflecting network attack vector, high attack complexity, no privileges required, no user interaction, and limited confidentiality and integrity impact. No vendor advisory or patch information is currently available to confirm remediation status.
Potential Impact
The vulnerability could allow attackers to bypass access controls in affected Spring WebFlux applications, potentially leading to unauthorized information disclosure or modification. The impact is limited to confidentiality and integrity with no availability impact. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, review and tighten access control configurations in Spring WebFlux applications using the Kotlin Router DSL. Monitor vendor channels for updates and apply patches promptly once available.
CVE-2026-41847: CWE-284: Improper Access Control in Spring Spring Framework
Description
Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL. Affected versions: Spring Framework 5.3.0 through 5.3.48.
CVSS v3.1
Score 4.8medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41847 is an improper access control vulnerability (CWE-284) in the Spring Framework's WebFlux module when using the Kotlin Router DSL. It affects versions 5.3.0 through 5.3.48. The vulnerability could allow unauthorized access bypassing intended security controls. The CVSS 3.1 base score is 4.8, reflecting network attack vector, high attack complexity, no privileges required, no user interaction, and limited confidentiality and integrity impact. No vendor advisory or patch information is currently available to confirm remediation status.
Potential Impact
The vulnerability could allow attackers to bypass access controls in affected Spring WebFlux applications, potentially leading to unauthorized information disclosure or modification. The impact is limited to confidentiality and integrity with no availability impact. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, review and tighten access control configurations in Spring WebFlux applications using the Kotlin Router DSL. Monitor vendor channels for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- vmware
- Date Reserved
- 2026-04-22T06:22:08.200Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a279b32e29bf47b503575c7
Added to database: 6/9/2026, 4:48:50 AM
Last enriched: 6/9/2026, 5:19:56 AM
Last updated: 6/9/2026, 10:58:51 AM
Views: 5
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