Critical
Authentication Bypass Using an Alternate Path or Channel in Apache Tomcat
In Apache Tomcat 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 a malicious web application was able to bypass a configured SecurityManager via a Tomcat utility method that was accessible to web applications.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.tomcat.embed:tomcat-embed-jasper | >= 9.0.0.M1, < 9.0.0.M10, >= 8.5.0, < 8.5.5, >= 8.0.0RC1, < 8.0.37, >= 7.0.0, < 7.0.72, >= 6.0.0, < 6.0.47 | 9.0.0.M10, 8.5.5, 8.0.37, 7.0.72, 6.0.47 |
| Java / Kotlin (Maven) | org.apache.tomcat:jasper | >= 6.0.0, < 6.0.47 | 6.0.47 |
| Java / Kotlin (Maven) | org.apache.tomcat:tomcat-jasper | >= 9.0.0.M1, < 9.0.0.M10, >= 8.5.0, < 8.5.5, >= 8.0.0RC1, < 8.0.37, >= 7.0.0, < 7.0.72 | 9.0.0.M10, 8.5.5, 8.0.37, 7.0.72 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-5018
- https://github.com/apache/tomcat/commit/648122fef84d3b43223e0b5ae668f84719dada0a
- https://github.com/apache/tomcat/commit/890a2f681ed2f3461b27983d7da9737375ff2ae4
- https://github.com/apache/tomcat/commit/a6b1ebc246b91b854237e5aad3dfd2b5460ea282
- https://lists.apache.org/thread.html/9b3a63a20c87179815fdea14f6766853bafe79a0042dc0b4aa878a9e%40%3Cannounce.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/9b3a63a20c87179815fdea14f6766853bafe79a0042dc0b4aa878a9e@%3Cannounce.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E
- https://security.netapp.com/advisory/ntap-20180605-0001
- https://usn.ubuntu.com/4557-1
- https://web.archive.org/web/20161125134649/http://www.securityfocus.com/bid/93942
- https://web.archive.org/web/20170908024318/http://www.securitytracker.com/id/1037142
- https://web.archive.org/web/20171012232225/http://www.securitytracker.com/id/1038757
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://access.redhat.com/errata/RHSA-2017:0455
- https://access.redhat.com/errata/RHSA-2017:0456
- https://access.redhat.com/errata/RHSA-2017:1548
- https://access.redhat.com/errata/RHSA-2017:1549
- https://access.redhat.com/errata/RHSA-2017:1550
- https://access.redhat.com/errata/RHSA-2017:1552
- https://access.redhat.com/errata/RHSA-2017:2247
- https://github.com/apache/tomcat
- https://github.com/search?q=repo%3Aapache%2Ftomcat+jasper.runtime+path%3A%2F%5Eres%5C%2Fbnd%5C%2F%2F&type=code
- https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
CVSS score
9.1/10
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-288- Platform
- Java / Kotlin (Maven)
- Package
org.apache.tomcat.embed:tomcat-embed-jasper, org.apache.tomcat:jasper, org.apache.tomcat:tomcat-jasper- Disclosed
- 13.05.2022
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-4v3g-g84w-hv7r - CC BY 4.0
Vulnerability history: org.apache.tomcat:tomcat-jasper
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 05.2022 11.2024
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- Medium 2
Disclosures per year
- 2022: 2
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 0
-
Authentication Bypass Using an Alternate Path or Channel in Apache Tomcat this entry
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