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Vulnerability record · CVE-2024-50379 · published 17 December 2024

CVE-2024-50379: Apache tomcat toctou race condition vulnerability

Apache · Tomcat

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability during JSP compilation in Apache Tomcat permits an RCE on case insensitive file systems when the default servlet is enabled for write (non-default configuration). 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. Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.

9.8 CVSS 3.1 Critical EPSS 32% · top 1.8% CWE-367 · TOCTOU race condition
9.8CVSS 3.1 base score
32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability during JSP compilation in Apache Tomcat permits an RCE on case insensitive file systems when the default servlet is enabled for write (non-default configuration). 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. Users are recommended to upgrade to version 11.0.2, 10.1.34 or 9.0.98, which fixes the issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/y6lj6q1xnp822g6ro70tn19sgtjmr80r Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2024/12/17/4 Mailing List
http://www.openwall.com/lists/oss-security/2024/12/18/2 Mailing List
https://lists.debian.org/debian-lts-announce/2025/01/msg00009.html
https://security.netapp.com/advisory/ntap-20250103-0003/ Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-50379), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.