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https://issues.apache.org/jira/browse/WW-5669?focusedWorklogId=1041183&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-1041183
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ASF GitHub Bot logged work on WW-5669:
--------------------------------------
Author: ASF GitHub Bot
Created on: 13/Sep/26 08:32
Start Date: 13/Sep/26 08:32
Worklog Time Spent: 10m
Work Description: sonarqubecloud[bot] commented on PR #1927:
URL: https://github.com/apache/struts/pull/1927#issuecomment-5652232974
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<!
Issue Time Tracking
-------------------
Worklog Id: (was: 1041183)
Time Spent: 1h (was: 50m)
> CSP nonce source is not configurable: struts.csp.nonceSource never reaches
> the injection point
> ----------------------------------------------------------------------------------------------
>
> Key: WW-5669
> URL: https://issues.apache.org/jira/browse/WW-5669
> Project: Struts 2
> Issue Type: Bug
> Components: Core Interceptors
> Reporter: Lukasz Lenart
> Assignee: Lukasz Lenart
> Priority: Major
> Fix For: 7.4.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> h2. Problem
> The constant {{StrutsConstants.STRUTS_CSP_NONCE_SOURCE}} declares the key
> {{struts.csp.nonce.source}}, but {{default.properties}} defines the setting
> as {{struts.csp.nonceSource}}. The two names never meet, so the injection
> point is never satisfied and the setting has no effect.
> Because both injection points are declared {{required = false}}, nothing
> fails at startup. The nonce source silently falls back to {{SESSION}}
> regardless of what is configured.
> h2. Evidence
> A search of the whole repository for {{struts.csp.nonce}} returns exactly
> three hits:
> * {{core/src/main/resources/org/apache/struts2/default.properties}} —
> {{struts.csp.nonceSource=session}}
> * {{core/src/main/java/org/apache/struts2/StrutsConstants.java}} —
> {{STRUTS_CSP_NONCE_READER = "struts.csp.nonce.reader"}}
> * {{core/src/main/java/org/apache/struts2/StrutsConstants.java}} —
> {{STRUTS_CSP_NONCE_SOURCE = "struts.csp.nonce.source"}}
> Nothing defines a constant named {{struts.csp.nonce.source}}, and nothing
> reads {{struts.csp.nonceSource}}.
> The key is consumed in two places, both asking for the name that is never
> defined:
> * {{StrutsCspNonceReader}} — constructor annotated {{@Inject(value =
> StrutsConstants.STRUTS_CSP_NONCE_SOURCE, required = false)}}; a blank value
> takes the {{CspNonceSource.SESSION}} branch
> * {{DefaultCspSettings#setNonceSource}} — same annotation; the field is
> already initialised to {{CspNonceSource.SESSION}}
> By contrast {{STRUTS_CSP_NONCE_READER}} is wired correctly, at
> {{StrutsBeanSelectionProvider:466}}, and is not affected.
> h2. Effect
> Setting {{struts.csp.nonceSource=request}} does nothing. The nonce is always
> stored in and read from the session, so applications that deliberately chose
> the request-scoped nonce — typically stateless or clustered deployments —
> silently get session-scoped behaviour instead.
> This is a functional defect rather than a security one: the ignored
> configuration leaves the safer of the two modes in force.
> h2. Affected versions
> Both names were introduced together in commit {{1b43b53c6}} under WW-5504, so
> the setting has never worked. First released in 6.8.0; still present on
> {{main}} and on {{support/struts-6-x-x}}.
> h2. Suggested fix
> Make the two names agree, and add the test coverage whose absence let this
> through — there is currently no test referencing the nonce source at all.
> Which name should win is worth deciding deliberately:
> * Renaming the property to {{struts.csp.nonce.source}} matches the constant
> and the neighbouring {{struts.csp.nonce.reader}}, and cannot change behaviour
> for anyone. Users who already set the camelCase name keep getting {{SESSION}}
> until they rename it.
> * Renaming the constant to {{struts.csp.nonceSource}} avoids asking users to
> change anything, but it silently *activates* a setting that has always been
> inert. Any deployment currently carrying {{struts.csp.nonceSource=request}}
> would switch from session-scoped to request-scoped nonces on upgrade, without
> touching its configuration.
> The first option is the safer default. Supporting both names, with the
> camelCase form deprecated, would avoid the migration entirely if that is
> preferred.
> Documentation on struts.apache.org should be checked and corrected to
> whichever name is chosen.
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