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  4. CVE 2026 86531 apache tomee dos via unbounded request body and
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Back to active CVEs
Unknown severity ยท Source severity not reportedCVE-2026-86531

Apache TomEE: DoS via unbounded request body and multipart handling in embedded HTTP serverCVE-2026-86531

Answer in brief

CVE-2026-86531 records a Unknown severity vulnerability in Apache TomEE: DoS via unbounded request body and multipart handling in embedded HTTP server. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/org.apache.openejb:openejb-http (generic), Apache Software Foundation/org.apache.tomee:openejb-http (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 10, 2026Updated Nov 10, 2026Source checked Nov 10, 2026First seen by HOL Nov 10, 2026Material review Nov 10, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/org.apache.openejb:openejb-http (generic), Apache Software Foundation/org.apache.tomee:openejb-http (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/org.apache.openejb:openejb-httpgeneric>=4.0.0-beta-1 <=4.7.5Not reported
Apache Software Foundation/org.apache.tomee:openejb-httpgeneric>=7.0.0-M1 <10.0.0-M1 || >=10.0.0-M1 <=10.2.0 || 11.0.0-M1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/org.apache.openejb:openejb-http, Apache Software Foundation/org.apache.tomee:openejb-http.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 10, 2026

Sources and claim methodology

  • Source referencelists.apache.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache TomEE: HTTP sessions shared across web applications in embedded HTTP serverSame apache software foundation/org.apache.openejb package
  • Apache TomEE: Authentication bypass via programmatic authentication in embedded HTTP serverSame apache software foundation/org.apache.openejb package
  • Apache TomEE: Authentication bypass in the embedded HTTP server for endpoints protected by HTTP Basic authenticationSame apache software foundation/org.apache.openejb package
  • Apache TomEE: Path traversal in embedded HTTP server static resource handlingSame apache software foundation/org.apache.tomee package
  • Apache TomEE: Caller identity leaks across requests in embedded HTTP serverSame apache software foundation/org.apache.tomee package
  • Apache TomEE: Session fixation in embedded HTTP serverSame apache software foundation/org.apache.tomee package

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-770
Source
CVE List V5
Source checked
Nov 10, 2026
References
1 linked source
Open source record