Apache TomEE: Stateful session bean hijacking via predictable session identifiers
CVSS score
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EPSS probability
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Risk score
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Published
7 h ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
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Evidence confidence
%55
Short explanation
Apache TomEE contains a vulnerability where stateful session bean identifiers are not generated from a cryptographically secure random source, allowing remote attackers to hijack other users' sessions.
This vulnerability enables attackers with access to the EJB remote endpoint to derive other clients' session identifiers and invoke methods on their beans, exposing or modifying user session states.
What should be done?
- Upgrade to version 10.3.0 or 11.0.0-M2
- Follow vendor advisories for updates
Chain of evidence and sources
Stateful session bean tanımlayıcıları şifreleme açısından güvenli olmayan rastgele bir kaynaktan üretilmektedir.
EJB uzak uç noktasına erişimi olan bir saldırgan diğer istemcilerin oturumlarını türetebilir ve metodları çağırabilir.
Kullanıcıların 10.3.0 veya 11.0.0-M2 sürümlerine yükseltme yapması önerilmektedir.
Show the technical text from the sources
Stateful session bean identifiers are not generated from a cryptographically secure random source. A remote attacker with access to the EJB remote endpoint who holds one valid identifier can derive those of other clients' sessions and invoke methods on their beans, exposing or modifying other users' session state. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.
CWE: CWE-340
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-87755 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-87755 weaknesses.
Official Sources and Advisories
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Weakness Type (CWE & CAPEC)
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