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https://issues.apache.org/jira/browse/HTTPCLIENT-2383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arturo Bernal closed HTTPCLIENT-2383.
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> LaxRedirectStrategy unintentionally blocks redirects due to inherited
> sensitive header check
> --------------------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-2383
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2383
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Reporter: Daniel Vega
> Priority: Major
> Fix For: 5.6-alpha1
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> {*}Summary{*}:
> {{LaxRedirectStrategy}} in HttpClient 5.5 does not override
> {{{}isRedirectAllowed(){}}}, causing unexpected redirect blocking due to
> inherited sensitive header checks.
> {*}Description{*}:
> Starting with HttpClient 5.5, a new check was introduced in
> {{{}RedirectStrategy.isRedirectAllowed(){}}}, and implemented in the class
> {{{}DefaultRedirectStrategy{}}}, to prevent redirects when requests contain
> sensitive headers such as {{{}Authorization{}}}. This is a security-conscious
> change and makes sense for the default strategy.
> However, {{{}LaxRedirectStrategy{}}}, which was introduced earlier (in 5.4)
> to allow more permissive redirection behavior, *inherits* from
> {{DefaultRedirectStrategy}} but does *not override*
> {{{}isRedirectAllowed(){}}}. As a result, even when {{LaxRedirectStrategy}}
> is explicitly used in a client, it still respects the stricter logic from
> {{DefaultRedirectStrategy}} when {{RedirectExec.handleResponse()}} delegates
> to {{{}isRedirectAllowed(){}}}.
> This leads to unintuitive behavior: despite choosing a “lax” strategy,
> redirections are blocked if sensitive headers are present — defeating the
> purpose of selecting {{LaxRedirectStrategy}} to have a more loose (lax)
> redirect behavior.
> {*}Proposed Fix{*}:
> Override {{isRedirectAllowed()}} in {{LaxRedirectStrategy}} to allow
> redirection regardless of sensitive headers, aligning with a more intuitive
> redirection strategy system.
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