CVE-2026-45292— opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation
Possible ATT&CK Techniques 1AI
T1496 · Resource HijackingAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| io.opentelemetry | opentelemetry-api | 1.62.0 | affected |
| io.opentelemetry | opentelemetry-extension-trace-propagators | 1.62.0 | affected |
| open-telemetry | opentelemetry-java | < 1.62.0 | affected |
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I. Basic Information for CVE-2026-45292
Vulnerability Information
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Vulnerability Title
opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation
Source: NVD (National Vulnerability Database)
Vulnerability Description
opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.62.0, a vulnerability affects the baggage propagation implementation in opentelemetry-api and opentelemetry-extension-trace-propagators. Parsing oversized baggage causes unbounded memory allocation and CPU consumption. Because baggage is automatically re-injected into every outgoing request, the effect can fan out to downstream services that never received the original malicious request. This vulnerability is fixed in 1.62.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenTelemetry 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenTelemetry是OpenTelemetry开源的一个供应商中立的开源可观测性框架。 OpenTelemetry 1.62.0之前版本存在安全漏洞，该漏洞源于解析过大的baggage导致无限制内存分配和CPU消耗，并可能传播到下游服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| open-telemetry | opentelemetry-java | < 1.62.0 | - | |
| io.opentelemetry | opentelemetry-api | 1.62.0 | - | |
| io.opentelemetry | opentelemetry-extension-trace-propagators | 1.62.0 | - |
II. Public POCs for CVE-2026-45292
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-45292 (1)
Vendor Advisories for CVE-2026-45292 (1)
Vendor Pages for CVE-2026-45292 (1)
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V. Comments for CVE-2026-45292
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