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CVE-2026-86531VulnerabilityPublished

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

Source GCVE Database

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Authoritative record:CVE-2026-86531· High

Not known to be exploited : upgrade to 10.0.0-M1 soon.

Data as of 10 Nov 2026, 19:05 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 10.0.0-M1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade Apache TomEE and org.apache.tomee/openejb-http to 10.0.0-M1.

Affected software

ProductAffectedFixed in
Apache TomEEorg.apache.openejb:openejb-httpAffected
  • >=4.0.0-beta-1 <=4.7.5
Fixed in–
Apache TomEEorg.apache.tomee:openejb-httpAffected
  • >=7.0.0-M1 <10.0.0-M1
  • >=10.0.0-M1 <=10.2.0
  • =11.0.0-M1
Fixed in
  • 10.0.0-M1
Mavenorg.apache.openejb/openejb-httppkg:maven/org.apache.openejb/openejb-httpOther threatsAffected
  • >=4.0.0-beta-1 <=4.7.5
Fixed in–
Mavenorg.apache.tomee/openejb-httppkg:maven/org.apache.tomee/openejb-httpOther threatsAffected
  • >=7.0.0-M1 <10.0.0-M1
  • >=10.0.0-M1 <=10.2.0
  • =11.0.0-M1
Fixed in
  • 10.0.0-M1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

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.

References

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