Medium 5.9Published Jan 14, 2021

CVE-2021-24122Apache Tomcat information disclosure

Updated under an hour ago (Oct 28, 2026, 4:50 AM ET)

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It affects Apache Software Foundation Apache Tomcat and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache Tomcat

Exploited in the last 30 days

When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances.

CVSS: 5.9 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Modified
Record last updated: Oct 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Tomcat apache_software_foundation:apache_tomcat (from the name)	from Apache Tomcat 10 before 10.0.0-M10; from Apache Tomcat 9 before 9.0.40; from Apache Tomcat 8.5 before 8.5.60; from Apache Tomcat 7 before 7.0.106	CNA record
apache tomcat apache:tomcat	from 7.0.0 through 7.0.106; from 8.5.0 through 8.5.59; from 9.0.1 through 9.0.39; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; and 31 more ranges	NVD
debian debian_linux debian:debian_linux	9.0	NVD
oracle agile_product_lifecycle_management oracle:agile_product_lifecycle_management	9.3.3; 9.3.6	NVD

References

References

https://lists.apache.org/thread.html/r1595889b083e05986f42b944dc43060d6b083022260b6ea64d2cec52%40%3Cannounce.tomcat.apache.org%3E	x-refsource-misc
https://lists.apache.org/thread.html/rca833c6d42b7b9ce1563488c0929f29fcc95947d86e5e740258c8937%40%3Cdev.tomcat.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r776c64337495bf28b7d5597268114a888e3fad6045c40a0da0c66d4d%40%3Cdev.tomee.apache.org%3E	mailing-list, x-refsource-mlist
http://www.openwall.com/lists/oss-security/2021/01/14/1	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r1595889b083e05986f42b944dc43060d6b083022260b6ea64d2cec52%40%3Cannounce.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r7e0bb9ea415724550e2b325e143b23e269579e54d66fcd7754bd0c20%40%3Cdev.tomcat.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rb32a73b7cb919d4f44a2596b6b951274c0004fc8b0e393d6829a45f9%40%3Cusers.tomcat.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r7382e1e35b9bc7c8f320b90ad77e74c13172d08034e20c18000fe710%40%3Cdev.tomee.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.debian.org/debian-lts-announce/2021/03/msg00018.html	mailing-list, x-refsource-mlist
https://www.oracle.com//security-alerts/cpujul2021.html	x-refsource-misc
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.