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-2022-25762

CVE-2022-25762HIGH

Apache Software Foundation Apache Tomcat — Response mix-up with WebSocket concurrent send and close

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  L  L    8.6   .0840   94.9     —

AFFECTED
  Product        Versions                              Fixed
  Apache Tomcat  Apache Tomcat 9 9.0.0.M1 to 9.0.20 –  —

TIMELINE
  Feb 22  Reserved by apache
  May 13  Published (CNA: apache)
  Oct 8   ENRICHED — CVE-2022-25762 (Apache Software Foundation Apache Tomcat). Received CVSS 8.6 and CPE data from NVD.

CWE-404 · CNA: apache · CVSS v3.1 · 3 references · NVD status: Modified

Description

If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0.M1 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling triggered in this case could cause the a pooled object to be placed in the pool twice. This could result in subsequent connections using the same object concurrently which could result in data being returned to the wrong use and/or other errors.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
February 22, 2022	Reserved	Reserved by apache
May 13, 2022	Published	Published (CNA: apache)
October 8, 2026	ENRICHED	ENRICHED — CVE-2022-25762 (Apache Software Foundation Apache Tomcat). Received CVSS 8.6 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 9 9.0.0.M1 to 9.0.20	—

Weaknesses

CWE-404

References (3)

https://lists.apache.org/thread/6ckmjfb1k61dyzkto9vm2k5jvt4o7w7c [Mailing List, Vendor Advisory]
https://security.netapp.com/advisory/ntap-20220629-0003/ [Third Party Advisory]
https://www.oracle.com/security-alerts/cpujul2022.html [Patch, Third Party Advisory]

Authoritative record: CVE-2022-25762 at cve.org

Vendors: apache

Weaknesses: CWE-404

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-25762 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.