CVE-2026-101259
Description
A flaw was found in the Apache Camel CoAP (Constrained Application Protocol) component. When a CoAP consumer fails to construct a response after a route completes, internal exception details are returned directly to the client in an error response payload rather than being suppressed. A remote attacker can exploit this issue by triggering response formatting or conversion errors, leading to information disclosure. This flaw allows an attacker to view sensitive deployment information, such as internal class names, system file paths, hostnames, and backend connection details.
Statement
This vulnerability is rated as Moderate severity rather than Important because successful exploitation only results in limited information disclosure (such as internal paths or class names) without granting code execution privileges or compromising data integrity, and it relies on specific route configurations where input can trigger conversion failures. In Red Hat integration environments, the camel-coap component is not enabled by default and is only exposed when applications explicitly configure CoAP consumer endpoints. Consequently, impact is restricted to deployments actively exposing unvalidated CoAP service routes to untrusted network clients.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.3 | N/A | 5.3 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | None | N/A | None |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Often this will either reveal sensitive information which may be used to launch another, more focused attack or disclose private information stored in the server. For example, an attempt to exploit a path traversal weakness (CWE-22) might yield the full pathname of the installed application. In turn, this could be used to select the proper number of ".." sequences to navigate to the targeted file. An attack using SQL injection (CWE-89) might not initially succeed, but an error message could reveal the malformed query, which would expose query logic and possibly even passwords or other sensitive information used within the query.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
