CVE-2026-87758: Apache TomEE · Improper Validation of Certificate with Host Mismatch
Affects Apache TomEESource CVE Database V5
Not known to be exploited · fixed in 11.0.0-M2 : patch Apache TomEE soon.
Data as of 10 Nov 2026, 16:02 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 11.0.0-M2, 10.3.0, 10.0.0-M1
Exploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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-client to 11.0.0-M2, 10.3.0 or 10.0.0-M1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache TomEEorg.apache.openejb:openejb-client | Affected
| Fixed in– |
| Apache TomEEorg.apache.tomee:openejb-client | Affected
| Fixed in
|
| Apache TomEEorg.apache.tomee:openejb-client | Affected
| Fixed in
|
| Apache TomEEorg.apache.tomee:openejb-client | Affected
| Fixed in
|
Mavenorg.apache.openejb/openejb-clientpkg:maven/org.apache.openejb/openejb-clientOther threats | Affected
| Fixed in– |
Mavenorg.apache.tomee/openejb-clientpkg:maven/org.apache.tomee/openejb-clientOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade Apache TomEE to versions 10.3.0 or 11.0.0-M2 or later, where this vulnerability is fixed. No other mitigations are indicated by the vendor advisory.
Description
Apache TomEE contains a vulnerability where the remote EJB client does not verify that the server's hostname matches the TLS certificate. This allows an attacker intercepting network traffic to impersonate the server and potentially read or modify sensitive data including credentials and invocation information. The issue is fixed in Apache TomEE versions 10.3.0 and 11.0.0-M2.