CVE-2024-50379 | Apache Tomcat: RCE due to TOCTOU issue in JSP compilation

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.

Published: 2024-12-17 Last update: 2025-11-03 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-50379 is rated High Risk (74.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 84.78%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-50379

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-23 84.59% 84.78% +0.19%
2 2026-05-21 84.98% 84.59% -0.39%
3 2026-05-08 — 84.98% —

Full EPSS history (76 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-50379

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-50379

GitHub Security Advisory for CVE-2024-50379

GHSA-5j33-cvvr-w245 · Severity: high · Ecosystem: maven — Apache Tomcat Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability

OS Trackers for CVE-2024-50379

vendor priority summary link
debian not yet assigned CVE-2024-50379 not yet assigned priority: Debian including 2 source packages (tomcat10, tomcat9), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 9. https://security-tracker.debian.org/tracker/CVE-2024-50379
redhat medium — https://access.redhat.com/security/cve/CVE-2024-50379
suse high — https://www.suse.com/security/cve/CVE-2024-50379/
ubuntu medium CVE-2024-50379 medium priority: Ubuntu including 6 source packages (tomcat10, tomcat11, tomcat6, tomcat7, tomcat8, tomcat9), 51 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 26, not-affected 9, ignored 6, needed 5, released 3, needs-triage 2. https://ubuntu.com/security/CVE-2024-50379

Affected software / configurations for CVE-2024-50379

Vendor Product Version Raw CPE
apache tomcat >= 9.0.0, < 9.0.98 cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat >= 10.1.0, < 10.1.34 cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
apache tomcat >= 11.0.0, < 11.0.2 cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
netapp bootstrap_os — cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:*

References for CVE-2024-50379

cvelogic Threat Intelligence