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Date: Mon, 16 May 2022 16:45:13 +0000
From: Tim Allison <>
Subject: CVE-2022-30126: Apache Tika Regular Expression Denial of Service
 in Standards Extractor 

Severity: low


A regular expression in our StandardsText class, used by the StandardsExtractingContentHandler could lead to a denial of service caused by backtracking on a specially crafted file. This only affects users who are running the StandardsExtractingContentHandler, which is a non-standard handler.  This is fixed in 1.28.2 and 2.4.0


Upgrade to 1.28.2 or 2.4.0


This issue was discovered and reported by the CodeQL team members [@atorralba (Tony Torralba)]( and [@joefarebrother (Joseph Farebrother)](

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