CVE-2026-88900: Insecure Deserialization Flaw in Apache Camel Scores 8.8 on CVSS
A newly published high vulnerability in Apache Camel carries a CVSS score of 8.8. Here is what is affected and how to respond.
Key points
- CVE-2026-88900 affects Apache Camel.
- CVSS 8.8 (High).
- No exploitation confirmed yet.
A high insecure deserialization tracked as CVE-2026-88900 has been published in the National Vulnerability Database for Apache Camel, with a CVSS base score of 8.8.
At a glance
- CVE
- CVE-2026-88900
- Product
- Apache Camel
- CVSS
- 8.8 High
- Weakness
- insecure deserialization
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: Deserialization of Untrusted Data vulnerability in Apache Camel Camel-Jgroups component.
This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1.
JGroupsEndpoint.createExchange(Message), which CamelJGroupsReceiver calls for every message the jgroups consumer receives before the exchange is routed, set the exchange body from org.jgroups.Message.getObject(). For an ObjectMessage, which is the message type the Camel jgroups producer sends, JGroups Java-deserializes the payload through an ObjectInputStream on its own receive thread as the message arrives, and getObject() returns the resulting object. No java.io.ObjectInputFilter was applied on that path unless the deployment had set a JVM-wide serialization filter: camel-jgroups installed none, and the JGroups versions shipped with the affected releases apply none of their own, so any serializable class on
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Camel | before 4.18.5, before 4.22.1 |
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
Background: Insecure deserialization
Look for base64-encoded parameters, unexpected object instantiation, or state changes that bypass authentication. Inspect input handling for unvalidated deserialization. Use allowlists for expected data types and verify integrity with digital signatures to prevent arbitrary code execution.
Read the full guide: Warning Signs of Insecure Deserialization in Web Applications
What to do and how to stay safe: CVE-2026-88900
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-88900?
CVE-2026-88900 is a insecure deserialization vulnerability in Apache Camel.
How severe is CVE-2026-88900?
It has a CVSS score of 8.8 High.
Is CVE-2026-88900 being exploited?
There is no public confirmation of exploitation at the time of publication.
