Vulnerability in Apache Tomcat

CVE-2024-50379

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.

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.318 (98.3th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-50379: fell from 0.443 to 0.318.

EPSS over last 30 days · oldest: 0.443 · newest: 0.318 · change: -0.125

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-50379?
CVE-2024-50379 is a critical-severity vulnerability in Apache Tomcat, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 9.8/10. Published 2024-12-17.
How severe is CVE-2024-50379?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-50379 known to be exploited?
59 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.