Medium [CVE-2026-87758] The remote EJB client does not verify that the hostname of the server it connects to matches the server's TLS certificate
This medium-severity Apache Software Foundation advisory covers CVE-2026-87758; related products: Apache TomEE.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
The remote EJB client does not verify that the hostname of the server it connects to matches the server's TLS certificate. An attacker able to intercept network traffic between an EJB client and server can impersonate the server and read or modify the traffic, including credentials and invocation data.
Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.
Affected product named by the advisory: Apache TomEE.
Is CVE-2026-87758 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-87758 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-87758?
Upgrade to a fixed release named by Apache:
- 10.3.0
- 11.0.0-M2
Confirm against the vendor advisory before you patch.
- Apache TomEE 4.0.0-beta-1 through 4.7.5
- Apache TomEE 7.0.0-M1 before 10.0.0-M1
- Apache TomEE 10.0.0-M1 before 10.3.0
- Apache TomEE 11.0.0-M1 before 11.0.0-M2
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
- 10.3.0
- 11.0.0-M2
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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