How to Fix CVE-2026-33453: Apache Camel (Bundle Sibling)
By Sai Kiran Pandrala
Last verified: 2026-05-25
CVE-2026-33453 is a sibling vulnerability in the same vendor advisory as CVE-2026-27172. Applying the patched build named in the primary write-up closes this CVE as well.
| Severity | CVSS 10 - Critical |
|---|---|
| Actively exploited? | Not currently in CISA KEV |
| Affected | Same as the bundle - see CVE-2026-27172 |
| Fixed in | Same patched build as CVE-2026-27172 (See vendor advisory) |
| Type (CWE) | CWE-915: CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes |
What's different about CVE-2026-33453?
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Apache Camel Camel-Coap component.
Apache Camel's camel-coap component is vulnerable to Camel message header injection, leading to remote code execution when routes forward CoAP requests to header-sensitive producers (e.g. camel-exec)
The camel-coap component maps incoming CoAP request URI query parameters directly into Camel Exchange In message headers without applying any HeaderFilterStrategy.
Specifically, CamelCoapResource.handleRequest() iterates over OptionSet.
The technical impact and remediation are identical to the primary CVE in the bundle. The same vendor patch closes both.
How to fix CVE-2026-33453
Apply the patched build per the primary write-up: How to Fix CVE-2026-27172.
The patch installation procedure, verification commands, and interim mitigations are documented there. Reusing one runbook keeps the rollout consistent across the bundle.
Frequently asked questions
Is CVE-2026-33453 fixed by the same patch as CVE-2026-27172?
Yes. CVE-2026-33453 ships in the same vendor advisory as CVE-2026-27172. Applying the patched build named in the primary write-up closes both.
What is the CVSS score for CVE-2026-33453?
The CVSS base score is 10 (Critical).
Is it being exploited?
It is not currently listed in CISA KEV.
References
- Official vendor advisory: https://camel.apache.org/security/CVE-2026-33453.html
- NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2026-33453
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary write-up: How to Fix CVE-2026-27172
*Part of the Apache Camel bundle. Full procedure at CVE-2026-27172.*