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Date: Fri, 23 Feb 2018 00:33:34 +0000
From: Mark Thomas <>
Subject: Fwd: [SECURITY] CVE-2018-1305 Security constraint annotations applied
 too late

-------- Forwarded Message --------
Subject: [SECURITY] CVE-2018-1305 Security constraint annotations
applied too late
Date: Fri, 23 Feb 2018 00:27:36 +0000
From: Mark Thomas <>
To: Tomcat Users List <>
CC: Tomcat Developers List <>,, <>

CVE-2018-1305 Security constraint annotations applied too late

Severity: High

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 9.0.0.M1 to 9.0.4
Apache Tomcat 8.5.0 to 8.5.27
Apache Tomcat 8.0.0.RC1 to 8.0.49
Apache Tomcat 7.0.0 to 7.0.84

Security constraints defined by annotations of Servlets were only
applied once a Servlet had been loaded. Because security constraints
defined in this way apply to the URL pattern and any URLs below that
point, it was possible - depending on the order Servlets were loaded -
for some security constraints not to be applied. This could have exposed
resources to users who were not authorised to access them.

Users of the affected versions should apply one of the following
mitigations. Upgrade to:
- Apache Tomcat 9.0.5 or later
- Apache Tomcat 8.5.28 or later
- Apache Tomcat 8.0.50 or later
- Apache Tomcat 7.0.85 or later

This issue was identified by the Apache Tomcat Security Team.

2018-02-23 Original advisory


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