Apache Tomcat Improper Resource Shutdown or Release vulnerability
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.tomcat.embed:tomcat-embed-core | >= 11.0.0-M1, < 11.0.10, >= 10.1.0-M1, < 10.1.44, >= 9.0.0.M1, < 9.0.108 | 11.0.10, 10.1.44, 9.0.108 |
| Java / Kotlin (Maven) | org.apache.tomcat:tomcat-coyote | >= 11.0.0-M1, < 11.0.10, >= 10.1.0-M1, < 10.1.44, >= 9.0.0.M1, < 9.0.108 | 11.0.10, 10.1.44, 9.0.108 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-48989
- https://github.com/apache/tomcat/commit/73c04a10395774bda71a0b37802cf983662ce255
- https://github.com/apache/tomcat/commit/f362c8eb3b8ec5b7f312f7f5610731c0fb299a06
- https://github.com/apache/tomcat/commit/f36b8a4eea4ce8a0bc035079e1d259d29f5eb7bf
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/9ydfg0xr0tchmglcprhxgwhj0hfwxlyf
- https://tomcat.apache.org/security-10.html
- https://tomcat.apache.org/security-11.html
- https://tomcat.apache.org/security-9.html
- https://www.kb.cert.org/vuls/id/767506
- http://www.openwall.com/lists/oss-security/2025/08/13/2
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-404- Platform
- Java / Kotlin (Maven)
- Package
org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat:tomcat-coyote- Disclosed
- 13.08.2025
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-gqp3-2cvr-x8m3 - CC BY 4.0
Vulnerability history: org.apache.tomcat.embed:tomcat-embed-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 77
- First → latest
- 10.2018 08.2026
- Without a fix
- 0
- Exploited in attacks
- 5
Severity breakdown
- Critical 11
- High 36
- Medium 25
- Low 5
Disclosures per year
- 2018: 8
- 2019: 5
- 2020: 5
- 2021: 3
- 2022: 7
- 2023: 9
- 2024: 7
- 2025: 15
- 2026: 18
-
Apache Tomcat Improper Resource Shutdown or Release vulnerability this entry
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