spring-projects / spring-projects/spring-security

Consider having ContentSecurityPolicyHeaderWriter supply a script nonce

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#10,826 3 comments 12 reactions 1 assignee View on GitHub

@jzheaux is already working on this.

Since Sep 2, 2026.

in: web type: enhancement
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Java
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Description

In order to have inline scripts and use a strict CSP, it's important to provide a nonce.

Spring Security's ContentSecurityPolicyHeaderWriter could generate a nonce if a {nonce} placeholder is in the policy directive configuration.

Then, it could be made available as a request attribute for use in views.

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