CVE-2026-45292
Description
A flaw was found in OpenTelemetry Java, specifically within the baggage propagation implementation of opentelemetry-api and opentelemetry-extension-trace-propagators. A remote attacker can exploit this vulnerability by sending oversized baggage, which leads to unbounded memory allocation and high CPU consumption. This can result in a Denial of Service (DoS) for the affected service. Furthermore, because baggage is automatically re-injected into outgoing requests, the impact can spread to other downstream services.
Statement
This is an Important denial of service vulnerability in OpenTelemetry Java's baggage propagation, affecting Red Hat products that use OpenTelemetry for telemetry. A remote attacker can exploit this by sending excessively large baggage, leading to uncontrolled memory and CPU usage. The vulnerability's impact can extend to downstream services due to automatic re-injection of baggage into outgoing requests.
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).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | N/A | 7.5 |
| 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 | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
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