`CVE-2024-56337`

9.8 Critical No exploit published

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.

CWE-367

Exploitation Status

No public exploit

Nothing published shows this CVE being exploited, which is not the same as ruling it out. nothing published in a year.

CVSS E:U

CISA KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC none indexed
EPSS 9.0% chance in 30 days

Waratek Defense Posture

No exploit published

In RASP's scope with an upstream fix path, but nobody has published a working exploit. That is a statement about what has been published, not a finding that the defect is unreachable or unimportant.

Protection none
Action unverified patch rule
Review automated upstream-data
Record active

Decided by no-exploit-published : A published working exploit for this candidate, not only a proof of concept, a forecast, or nothing at all

Finding This CVE is not listed in CISA KEV, CISA Vulnrichment records no active exploitation, and no reviewed exploit catalogue carries an entry for it. Nobody has published something a stranger can run, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.

Decided by	`no-exploit-published` : A published working exploit for this candidate, not only a proof of concept, a forecast, or nothing at all
Finding	This CVE is not listed in CISA KEV, CISA Vulnrichment records no active exploitation, and no reviewed exploit catalogue carries an entry for it. Nobody has published something a stranger can run, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.

CVSS

9.8 CRITICAL v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 1 metric

VRT selects the newest version's highest entry and publishes it as cvssScore, newest rather than largest because scores are not comparable across versions, and highest rather than first because the first entry is frequently a CNA placeholder scoring 0.0 over NVD's own analysis.

Version Score Band Vector Assigner Type

CVSS 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CISA-ADP Secondary published

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	9.8	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`	CISA-ADP	Secondary	published

Affected Software & Releases

🏛️ Oracle CPU Advisories & Products

Advisory	Type	Quarter	Products Oracle named in risk matrix
Oracle Critical Patch Update April 2025 ↗	CPU	2025-Q2	Oracle Communications / Automated Test Suite (Apache Tomcat) (24.2.0) Oracle Communications / BEServer (Apache Tomcat) (24.3.0) Oracle Financial Services Applications / Installer (Apache Tomcat) (8.1.2.7.0) Oracle Fusion Middleware / Runtime Server (Apache Tomcat) (12.2.1.4.0) Oracle Supply Chain / Document Management (Apache Tomcat) (6.2.1)
Oracle Critical Patch Update January 2025 ↗	CPU	2025-Q1	Oracle Communications / Configuration Management Platform (Apache Tomcat) (15.0.0.0.0)

Advisory

Type

Quarter

Products Oracle named in risk matrix

Oracle Critical Patch Update April 2025 ↗

CPU

2025-Q2

Oracle Communications / Automated Test Suite (Apache Tomcat) (24.2.0)
Oracle Communications / BEServer (Apache Tomcat) (24.3.0)
Oracle Financial Services Applications / Installer (Apache Tomcat) (8.1.2.7.0)
Oracle Fusion Middleware / Runtime Server (Apache Tomcat) (12.2.1.4.0)
Oracle Supply Chain / Document Management (Apache Tomcat) (6.2.1)

Oracle Critical Patch Update January 2025 ↗

CPU

2025-Q1

Oracle Communications / Configuration Management Platform (Apache Tomcat) (15.0.0.0.0)

Indexed Oracle Components & Versions

Family	Component	Oracle's version cell (verbatim)	Indexed as
Oracle Communications	Automated Test Suite (Apache Tomcat)	24.2.0	24.2.0
Oracle Communications	BEServer (Apache Tomcat)	24.3.0	24.3.0
Oracle Communications	Configuration Management Platform (Apache Tomcat)	15.0.0.0.0	15.0.0.0.0
Oracle Financial Services Applications	Installer (Apache Tomcat)	8.1.2.7.0	8.1.2.7.0
Oracle Fusion Middleware	Runtime Server (Apache Tomcat)	12.2.1.4.0	12.2.1.4.0
Oracle Supply Chain	Document Management (Apache Tomcat)	6.2.1	6.2.1

☕ Maven Library Packages

Artifact coordinates and fix boundaries from OSV.dev

Package Coordinate Introduced Fixed Last affected

org.apache.tomcat:tomcat-catalina 11.0.0-M1 11.0.2 unbounded

org.apache.tomcat:tomcat-catalina 10.1.0-M1 10.1.34 unbounded

org.apache.tomcat:tomcat-embed-core 9.0.0.M1 9.0.98 unbounded

org.apache.tomcat.embed:tomcat-embed-core 11.0.0-M1 11.0.2 unbounded

org.apache.tomcat.embed:tomcat-embed-core 10.1.0-M1 10.1.34 unbounded

org.apache.tomcat.embed:tomcat-embed-core 9.0.0.M1 9.0.98 unbounded

Package Coordinate	Introduced	Fixed	Last affected
`org.apache.tomcat:tomcat-catalina`	11.0.0-M1	`11.0.2`	unbounded
`org.apache.tomcat:tomcat-catalina`	10.1.0-M1	`10.1.34`	unbounded
`org.apache.tomcat:tomcat-embed-core`	9.0.0.M1	`9.0.98`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	11.0.0-M1	`11.0.2`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	10.1.0-M1	`10.1.34`	unbounded
`org.apache.tomcat.embed:tomcat-embed-core`	9.0.0.M1	`9.0.98`	unbounded

🖥️ Product CPEs & Version Ranges

5 product(s) over 10 version claims (uncapped)

Source	Vendor	Product	Scheme	Affected Versions
nvd	apache	tomcat	generic	≥ 9.0.0 and ＜ 9.0.98 · ≥ 10.1.0 and ＜ 10.1.34 · ≥ 11.0.0 and ＜ 11.0.2
nvd	netapp	bootstrap os	generic	any version
osv	org.apache.tomcat	tomcat-catalina	generic	≥ 10.1.0 and ＜ 10.1.34 · ≥ 11.0.0 and ＜ 11.0.2
osv	org.apache.tomcat	tomcat-embed-core	generic	≥ 9.0.0 and ＜ 9.0.98
osv	org.apache.tomcat.embed	tomcat-embed-core	generic	≥ 9.0.0 and ＜ 9.0.98 · ≥ 10.1.0 and ＜ 10.1.34 · ≥ 11.0.0 and ＜ 11.0.2

Source

Vendor

Product

Scheme

Affected Versions

nvd

apache

tomcat

generic

≥ 9.0.0 and ＜ 9.0.98 · ≥ 10.1.0 and ＜ 10.1.34 · ≥ 11.0.0 and ＜ 11.0.2

nvd

netapp

bootstrap os

generic

any version

osv

org.apache.tomcat

tomcat-catalina

generic

≥ 10.1.0 and ＜ 10.1.34 · ≥ 11.0.0 and ＜ 11.0.2

osv

org.apache.tomcat

tomcat-embed-core

generic

≥ 9.0.0 and ＜ 9.0.98

osv

org.apache.tomcat.embed

tomcat-embed-core

generic

≥ 9.0.0 and ＜ 9.0.98 · ≥ 10.1.0 and ＜ 10.1.34 · ≥ 11.0.0 and ＜ 11.0.2

References

URL	Tags
https://github.com/apache/tomcat	PACKAGE
https://lists.apache.org/thread/b2b9qrgjrz1kvo4ym8y2wkfdvwoq6qbp	WEB
https://lists.debian.org/debian-lts-announce/2025/01/msg00009.html	WEB
https://security.netapp.com/advisory/ntap-20250103-0002	WEB
https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.34	WEB
https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.2	WEB
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.98	WEB
https://www.cve.org/CVERecord?id=CVE-2024-50379	WEB
https://security.netapp.com/advisory/ntap-20250103-0002/	Third Party Advisory

URL

Timeline

Published 2024-12-20 Last modified 2026-06-17

Published	2024-12-20	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2024-12-20

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

Pipeline policy audit (15 of 21 rules evaluated)

15 of 21 rules ran. The rest were never reached, because an earlier stage settled the CVE, a distinct claim from a rule that ran and found nothing.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? first match wins

1 rejected no-match CVE Program withdrawal of this identifier

scope: Is the vulnerability ARMR's to address? first match wins

2 armr-patch-file no-match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no-match An ARMR security-rule template on disk for this CVE

4 manual-classification no-match A researcher's recorded decision for this specific CVE

5 manual classification no-match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no-match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no-match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the native WebLogic proxy plug-in. Oracle gives these no CPE of their own and names them only in the description.

8 osv-maven matched Queued for review Maven packages: org.apache.tomcat:tomcat-catalina, org.apache.tomcat:tomcat-embed-core, org.apache.tomcat.embed:tomcat-embed-core

9 cna-maven-package not-reached An affected Maven artifact named by the CNA itself

10 known-cpe-product not-reached An NVD CPE naming a product ARMR tracks

11 cna-cpe-product not-reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

12 oracle-advisory-family not-reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

13 non-deployable-product not-reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

14 unmatched-product not-reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? cumulative: every rule gets a turn

15 patch-hint no-match A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

16 open-source-maven matched Mitigation candidate Open-source Maven artifact indexed by OSV (Maven packages: org.apache.tomcat:tomcat-catalina, org.apache.tomcat:tomcat-embed-core, org.apache.tomcat.embed:tomcat-embed-core). The source is public, which makes an ARMR patch rule a candidate; nothing here establishes that one can be written.

17 poc-derivable skipped An indexed exploit to reverse-engineer, where there is no source to read

18 no-exploit skipped With no fix path, a public exploit, or a CISA record of one

19 secure-rule-match no-match A vulnerability class already blocked by an ARMR security rule

20 below-action-threshold no-match Severity is CRITICAL — only MEDIUM/LOW are deprioritized

21 no-exploit-published decided it matched No exploit published No working exploit has been published, and an upstream fix path does exist, so the remediation half of the candidacy still holds.

What the scope rules read

The products the record named, and whether known-products.yaml tracks them. This is the evidence the scope stage decided on.

Vendor Product Tracked CPE Source

apache tomcat tracked cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* yaml

netapp bootstrap_os not tracked cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:*

Raw stored JSON document for this CVE ↗ · NVD ↗ · CVE.org ↗