CVE-2026-41901

Published: Mag 13, 2026 Last Modified: Mag 13, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,0
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

Thymeleaf is a server-side Java template engine for web and standalone environments. Prior to 3.1.5.RELEASE, a security bypass vulnerability exists in the expression execution mechanisms of Thymeleaf. Although the library provides mechanisms to avoid the execution of potentially dangerous expressions in some specific sandboxed (restricted) contexts, it fails to properly neutralize specific constructs that allow this kind of expressions to be executed. If an application developer passes to the template engine unsanitized variables that contain such expressions, and these values are used in sandboxed contexts inside the templates, these expressions can be executed achieving Server-Side Template Injection (SSTI). This vulnerability is fixed in 3.1.5.RELEASE.

917

Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity
Potential Impacts:
Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: Java
View CWE Details
1336

Improper Neutralization of Special Elements Used in a Template Engine

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: Interpreted, Java, JavaScript, PHP, Python
Technologies: AI/ML, Client Server, Not Technology-Specific
View CWE Details
https://github.com/thymeleaf/thymeleaf/security/advisories/…
https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-c9ph-gxww-7744