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Fencer Intel
medium —

CVE-2026-86531 json

Apache TomEE: DoS via unbounded request body and multipart handling in embedded HTTP server

published yesterday modified yesterday also EUVD-2026-121163

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

The embedded OpenEJB HTTP server does not limit the size of incoming request bodies or of multipart requests, and does not remove the temporary files it creates for multipart parts. A remote unauthenticated attacker can cause excessive memory or disk usage, leading to denial of service. Deployments using the Tomcat connectors are not affected. Users are recommended to block network access to the embedded HTTP server from untrusted clients, or to migrate to the Tomcat based TomEE distributions.

Patch / fix

  • maven org.apache.tomee:openejb-http 10.0.0-M1
  • Apache Software Foundation Apache TomEE 10.0.0-M1

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Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-11).

Affected packages

ecosystem package affected fixed in
maven org.apache.openejb:openejb-http
>=4.0.0-beta-1, <=4.7.5
 no fix listed
maven org.apache.tomee:openejb-http
>=7.0.0-M1, <10.0.0-M1
>=10.0.0-M1, <=10.2.0
11.0.0-M1
10.0.0-M1

Affected products

  • Apache Software Foundation Apache TomEE

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

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