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Product · Red Hat

undertow

9 known vulnerabilities.

undertow at a glance

Last 12 months
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Critical · all time
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Exploited · all time
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New vulnerabilities per month · last 12 months
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Latest advisories

  • Medium max 7.5
    WID-SEC-2026-3059 1 CVE rev. 2

    Red Hat Undertow: Schwachstelle ermöglicht Denial of Service

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Undertow ausnutzen, um einen Denial of Service Angriff durchzuführen.

    Red Hat Linux
    first Aug 27, 2026
  • Medium max 7.5
    WID-SEC-2026-3099 1 CVE

    Red Hat Undertow: Schwachstelle ermöglicht Denial of Service

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Undertow ausnutzen, um einen Denial of Service Angriff durchzuführen.

    Red Hat Linux
  • Medium max 5.3
    WID-SEC-2026-2862 1 CVE

    Red Hat Undertow: Schwachstelle ermöglicht Manipulation von Dateien

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Undertow ausnutzen, um Dateien zu manipulieren.

    Red Hat
  • High max 8.7
    WID-SEC-2026-0907 3 CVEs rev. 2

    Red Hat Undertow: Mehrere Schwachstellen ermöglichen Umgehung von Sicherheitsmaßnahmen

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Undertow ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und vertrauliche Informationen offenzulegen.

    Red Hat
    first Mar 29, 2026
  • Medium max 5.9
    WID-SEC-2026-0830 1 CVE

    Red Hat Undertow: Schwachstelle ermöglicht Denial of Service

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Undertow ausnutzen, um einen Denial of Service Angriff durchzuführen.

    Red Hat Linux
All Critical High Medium Low Exploited only Public exploit

9 results · Feed

  • Medium 6.5
    CVE-2020-10719

    HTTP Request Smuggling in Undertow

    A flaw was found in Undertow in versions before 2.1.1.Final, regarding the processing of invalid HTTP requests with large chunk sizes. This flaw allows an attacker to take advantage of HTTP request smuggling.

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • High 8.1
    CVE-2020-1757

    Improper Input Validation in Undertow

    A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path afte…

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • High 7.5
    CVE-2019-14888

    Undertow vulnerable to Uncontrolled Resource Consumption

    A vulnerability was found in the Undertow HTTP server in versions before 2.0.28.SP1 when listening on HTTPS. An attacker can target the HTTPS port to carry out a Denial Of Service (DOS) to make the service unavailable on SSL.

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • Medium 4.8
    CVE-2019-10212

    Potential to access user credentials from the log files when debug logging enabled

    A flaw was found in, all under 2.0.20, in the Undertow DEBUG log for io.undertow.request.security. If enabled, an attacker could abuse this flaw to obtain the user's credentials from the log files.

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • Medium 5.3
    CVE-2019-3888

    Credential exposure through log files in Undertow

    A vulnerability was found in Undertow web server before 2.0.21. An information exposure of plain text credentials through log files because Connectors.executeRootHandler:402 logs the HttpServerExchange object at ERROR level using UndertowLogger.REQUEST_LOGGER…

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • Medium 5.3
    CVE-2018-14642

    Exposure of Sensitive Information to an Unauthorized Actor in Undertow

    An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which may contain data fro…

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • Medium 6.5
    CVE-2018-1114

    Uncontrolled Resource Consumption in Undertow

    It was found that URLResource.getLastModified() in Undertow closes the file descriptors only when they are finalized which can cause file descriptors to exhaust. This leads to a file handler leak.

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • Low 2.6
    CVE-2017-12165

    Undertow Request Smuggling vulnerability

    It was discovered that Undertow before 1.4.17, 1.3.31 and 2.0.0 processes http request headers with unusual whitespaces which can cause possible http request smuggling.

    Red Hat undertow undertow undertow Debian Ubuntu Maven
  • Medium 6.1
    CVE-2017-7559

    Undertow vulnerable to Request Smuggling

    In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. This could be exploited…

    Red Hat undertow undertow undertow Debian Ubuntu Maven