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  4. CVE 2026 111259 apache tomee predictable http session identifiers
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-111259

Apache TomEE: Predictable HTTP session identifiers in embedded serverCVE-2026-111259

Answer in brief

CVE-2026-111259 records a Unknown severity vulnerability in Apache TomEE: Predictable HTTP session identifiers in embedded server. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/org.apache.tomee:tomee-embedded (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
1 mapped package or product
Fix availability
Available

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.tomee:tomee-embedded (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/org.apache.tomee:tomee-embeddedgeneric>=7.0.0-M1 <10.0.0-M1 || >=10.0.0-M1 <10.3.0 || >=11.0.0-M1 <11.0.0-M210.3.0, 11.0.0-M2

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/org.apache.tomee:tomee-embedded.
  2. 2Review the reported fix. Update Apache Software Foundation/org.apache.tomee:tomee-embedded to 10.3.0 if you use the affected versions. Test the change in a non-production environment first.

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 server generates HTTP session identifiers with a non-cryptographic random number generator by default. A remote attacker who observes a session identifier can predict the identifiers issued to other users and hijack their sessions, if the application relies on HTTP sessions for authentication. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache TomEE: Predictable OpenID Connect state and nonce valuesAlso CWE-338

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-338
Source
CVE List V5
Source checked
Nov 10, 2026
References
1 linked source
Open source record