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Back to active CVEs
Medium · CVSS 5.9CVE-2021-24122

Apache Tomcat information disclosureCVE-2021-24122

Answer in brief

CVE-2021-24122 records a Medium severity (CVSS 5.9) vulnerability in Apache Tomcat information disclosure. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache Tomcat (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jan 14, 2021Updated Oct 8, 2026Source checked Oct 8, 2026First seen by HOL Aug 28, 2026Material review Oct 8, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.9
Exploitation
Not marked as known exploited
Affected software
41 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/Apache Tomcat (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone6:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone7:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone8:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:10.0.0:milestone9:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.3:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/Apache Tomcatgeneric>=Apache Tomcat 10 <10.0.0-M10 || >=Apache Tomcat 9 <9.0.40 || >=Apache Tomcat 8.5 <8.5.60 || >=Apache Tomcat 7 <7.0.10610.0.0-M10, 9.0.40, 8.5.60, 7.0.106

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/Apache Tomcat.
  2. 2Review the reported fix. Update Apache Software Foundation/Apache Tomcat to 10.0.0-M10 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jan 14, 2021

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 28, 2026

Sources and claim methodology

  • Source referencelists.apache.org
  • Source referencelists.apache.org
  • Source referencelists.apache.org
  • Source referencelists.apache.org
  • Source referencelists.apache.org
  • Source referencelists.apache.org
  • Source referencelists.apache.org
  • Source referencelists.debian.org
  • Source referencesecurity.netapp.com
  • Source referenceoracle.com
  • Source referenceopenwall.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Jivejdon through 5.0 SQL Injection via username in userListActionSame generic ecosystem
  • Satel Netco Design Cross-site ScriptingSame generic ecosystem
  • Unauthenticated JSON API Authorization Bypass Vulnerability in TP-Link Tapo C325WBSame generic ecosystem
  • Unauthenticated RTSP Tunnel Denial-of-Service Vulnerability in TP-Link Tapo C325WBSame generic ecosystem
  • Predictable Media Stream Pre-Shared Key Vulnerability in TP-Link Tapo C325WBSame generic ecosystem
  • Eog: eog: arbitrary code execution via heap buffer overflow in png metadata readerSame generic ecosystem

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-200, CWE-706
Source
CVE List V5
Source checked
Oct 8, 2026
References
11 linked sources
Open source record