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https://issues.apache.org/jira/browse/SLING-8775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Radu Cotescu updated SLING-8775:
--------------------------------
    Fix Version/s: XSS Protection API 2.1.10

> java.lang.StackOverflowError in XSSAPIImpl.getValidHref for long URLs
> ---------------------------------------------------------------------
>
>                 Key: SLING-8775
>                 URL: https://issues.apache.org/jira/browse/SLING-8775
>             Project: Sling
>          Issue Type: Bug
>          Components: XSS Protection API
>    Affects Versions: XSS Protection API 2.1.0, XSS Protection API 2.0.8, XSS 
> Protection API 2.0.10, XSS Protection API 2.0.12, XSS Protection API 2.0.14, 
> XSS Protection API 2.1.6, XSS Protection API 2.1.8
>            Reporter: Antonio Sanso
>            Assignee: Radu Cotescu
>            Priority: Major
>             Fix For: XSS Protection API 2.1.10
>
>
> The regex pattern in  XSSAPI.getValidHref may cause StackOverflowError .
> try 'xssAPI.getValidHref(String)' API throwing StackOverflowError. Input 
> string param that has a length of '1700' or more. 
> {code}
> Caused by: java.lang.StackOverflowError
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at 
> java.base/java.util.regex.Pattern$BmpCharProperty.match(Pattern.java:3951)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at 
> java.base/java.util.regex.Pattern$CharPropertyGreedy.match(Pattern.java:4293)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Branch.match(Pattern.java:4736)
>       at java.base/java.util.regex.Pattern$GroupHead.match(Pattern.java:4791)
>       at java.base/java.util.regex.Pattern$Loop.match(Pattern.java:4928)
>       at java.base/java.util.regex.Pattern$GroupTail.match(Pattern.java:4850)
>       at java.base/java.util.regex.Pattern$BranchConn.match(Pattern.java:4700)
>       at 
> java.base/java.util.regex.Pattern$CharProperty.match(Pattern.java:3927)
> {code}



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