SecuriTricks - CVE-2026-41839

Description

A WebFlux application with a compromised subdomain (for example, compromised via cross-site scripting (XSS)) is vulnerable to an escalation attack exchanging a known session ID for that of an authenticated user. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Product(s) Impacted

Vendor	Product	Versions
Springproject	Spring Framework	5.3.0-5.3.48, 6.1.0-6.1.27, 6.2.0-6.2.18, 7.0.0-7.0.7

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-384

Session Fixation

Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	springproject	spring_framework	5.3.0-5.3.48	/	/	/	/	/	/	/
a	springproject	spring_framework	6.1.0-6.1.27	/	/	/	/	/	/	/
a	springproject	spring_framework	6.2.0-6.2.18	/	/	/	/	/	/	/
a	springproject	spring_framework	7.0.0-7.0.7	/	/	/	/	/	/	/

References

https://spring.io/security/cve-2026-41839

CVSS Score

4.2 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

View Vector String

Timeline

Published: June 9, 2026, 5:16 a.m.
Last Modified: June 9, 2026, 1:49 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-41839