Vulnerability DatabaseCVE-2026-47889
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-47889
Published:August 27, 2026
Updated:August 29, 2026
A WebFlux application running on the Jetty 12 Core reactive adapter serializes response cookies without the sameSite attribute. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19
Affected Packages
https://github.com/spring-projects/spring-framework.git (GITHUB):
Affected version(s) >=v7.0.0 <v7.0.9
Fix Suggestion:
Update to version v7.0.9
org.springframework:spring-web (JAVA):
Affected version(s) >=7.0.0 <7.0.9
Fix Suggestion:
Update to version 7.0.9
Related Resources (1)
https://spring.io/security/cve-2026-47889
Do you need more information?
Contact Us
CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Sensitive Cookie with Improper SameSite Attribute
CWE-1275
EPSS
Base Score:
0.25