Incomplete Cleanup vulnerability in Apache Tomcat. The internal fork of Commons FileUpload packaged with Apache Tomcat 9.0.70 through 9.0.80 and 8.5.85 through 8.5.93 included an unreleased, in progress refactoring that exposed a potential denial of service on Windows if a web application opened a stream for an uploaded file but failed to close the stream. The file would never be deleted from disk creating the possibility of an eventual denial of service due to the disk being full. Other, EOL versions may also be affected. Users are recommended to upgrade to version 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 Mailing List, Vendor Advisory
- https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 Mailing List, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.9 · apacheNVD modified 2026-10-08 22:17
Affected (CPE criteria) 1
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
References 3
- https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2023/10/10/8 Mailing List, Third Party Advisory
- https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82 Mailing List, Vendor Advisory