Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2021-24122
Apache Tomcat information disclosure
AV AC PR UI S C I A CVSS EPSS %ile KEV
N H N N U H N N 5.9 .2285 97.7 —
AFFECTED
Product Versions Fixed
Apache Tomcat Apache Tomcat 10 – —
TIMELINE
Jan 14 Reserved by apache
Jan 14 Published (CNA: apache)
Oct 8 ENRICHED — CVE-2021-24122 (Apache Software Foundation Apache Tomcat). Received CVSS 5.9 and CPE data from NVD.
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| January 14, 2021 | Reserved | Reserved by apache |
| January 14, 2021 | Published | Published (CNA: apache) |
| October 8, 2026 | ENRICHED | ENRICHED — CVE-2021-24122 (Apache Software Foundation Apache Tomcat). Received CVSS 5.9 and CPE data from NVD. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Apache Software Foundation | Apache Tomcat | — | Apache Tomcat 10 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-24122 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.