Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack.

Are you affected?

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• vendor Apache Software Foundation Apache Tomcat 10.1.0-M1 ≤10.1.4310.1.0-M1 ≤10.1.43

How to fix CVE-2025-48989

• No stored fix

  No vendor fix text is stored. Use the linked advisory before you change production.

• Version check

  Seen in 10.1.0-M1 ≤10.1.43

• Advisory

  Open the cve_org record and follow its fix.

• Official advisories

  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • EUVD · euvd.enisa.europa.eu

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Aug 13, 2025 · EUVD

   Detected

   Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older, EOL versions may also be affected. Users are recommended to upgrade to one of versions 11.0.10, 10.1.44 or 9.0.108 which fix the issue.

2. May 12, 2026 · EUVD

   Updated

   Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older, EOL versions may also be affected. Users are recommended to upgrade to one of versions 11.0.10, 10.1.44 or 9.0.108 which fix the issue.

Sources

• CVE.orgVulnerability recordCVE-2025-48989

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2025-48989

  30-day exploitation probability 3.69%

  first.org
• EUVDVulnerability recordEUVD-2025-24559

  Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older, EOL versions may als

  euvd.enisa.europa.eu

References

• EUVD record · euvd.enisa.europa.eu
• EUVD reference · lists.apache.org

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

• FIRST EPSSOct 23, 2026
• CVE.orgOct 21, 2026
• EUVDOct 20, 2026