CVE-2024-56337

Aliases:GHSA-27hp-xhwr-wr2mBIT-tomcat-2024-56337
Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 20 Dec 2024, 15:28
Last modified:04 Nov 2025, 15:59

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (cve.org)
EPSS Score
13.16% MEDIUM
13% probability +3.27%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 Dec 2024, 15:28
Published
Vulnerability first disclosed
04 Nov 2025, 15:59
Last Modified
Vulnerability information updated

Description

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. The mitigation for CVE-2024-50379 was incomplete. Users running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation parameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat: - running on Java 8 or Java 11: the system property sun.io.useCanonCaches must be explicitly set to false (it defaults to true) - running on Java 17: the system property sun.io.useCanonCaches, if set, must be set to false (it defaults to false) - running on Java 21 onwards: no further configuration is required (the system property and the problematic cache have been removed) Tomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set sun.io.useCanonCaches to false by default where it can.

CVSS Metrics

  • v4.0•CRITICAL•Score: 9.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 13.16%• Percentile: 94%

Techniques & Countermeasures

  • CWE-367•Time-of-check Time-of-use (TOCTOU) Race Condition

    The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Affected Systems

  • apache software foundation•apache tomcat

    ≥ 11.0.0-M1, ≤ 11.0.1 | ≥ 10.1.0-M1, ≤ 10.1.33 | ≥ 9.0.0.M1, ≤ 9.0.97 | ≥ 8.5.0, ≤ 8.5.100

  • Unknown•Tomcat

    ≥ 9.0.0, < 9.0.98 | ≥ 10.1.0, < 10.1.34 | ≥ 11.0.0, < 11.0.2

  • org.apache.tomcat•tomcat-catalina

    ≥ 11.0.0-M1, < 11.0.2 | ≥ 10.1.0-M1, < 10.1.34

  • org.apache.tomcat•tomcat-embed-core

    ≥ 9.0.0.M1, < 9.0.98

  • org.apache.tomcat.embed•tomcat-embed-core

    ≥ 11.0.0-M1, < 11.0.2 | ≥ 10.1.0-M1, < 10.1.34 | ≥ 9.0.0.M1, < 9.0.98

  • netapp•bootstrap_os

    na

References (10)