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CVE-2026-54712— OpenTelemetry Javaagent RMI context propagation allows resource exhaustion

Quick assessment

Affected
open-telemetry opentelemetry-java-instrumentation
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

open-telemetry opentelemetry-java-instrumentation是open-telemetry组织的一款Java应用的观测性数据采集组件。 open-telemetry opentelemetry-java-instrumentation 2.27.0之前版本存在资源管理错误漏洞，该漏洞源于RMI上下文传播有效载荷读取器未限制从流中读取字符串的聚合大小，可能导致攻击者发送过大有效载荷，造成过度内存分配，从而引发拒绝服务。

CVSS 5.3 · Medium EPSS 0.46% · P38

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-telemetry opentelemetry-java-instrumentation < 2.27.0 affected
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I. Basic Information for CVE-2026-54712

Vulnerability Information
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Vulnerability Title
OpenTelemetry Javaagent RMI context propagation allows resource exhaustion
Source: CVE Program / CVE List V5
Vulnerability Description
OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java. In versions prior to 2.27.0, the RMI context propagation payload reader limits the number of context entries but does not limit the aggregate size of the strings read from the stream. An attacker who can reach an RMI endpoint on an instrumented JVM can send an oversized context propagation payload. This can cause excessive memory allocation while the JVM reads the payload, potentially leading to denial of service. The issue affects only deployments where RMI instrumentation is enabled and an RMI endpoint is network-reachable. This issue has been fixed in version 2.27.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
open-telemetry opentelemetry-java-instrumentation 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
open-telemetry opentelemetry-java-instrumentation是open-telemetry组织的一款Java应用的观测性数据采集组件。 open-telemetry opentelemetry-java-instrumentation 2.27.0之前版本存在资源管理错误漏洞，该漏洞源于RMI上下文传播有效载荷读取器未限制从流中读取字符串的聚合大小，可能导致攻击者发送过大有效载荷，造成过度内存分配，从而引发拒绝服务。
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-instrumentation < 2.27.0 -

II. Public POCs for CVE-2026-54712

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III. Intelligence Information for CVE-2026-54712

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Vendor Advisories for CVE-2026-54712 (1)

IV. Related Vulnerabilities

Same product: opentelemetry-java-instrumentation
Same vendor: open-telemetry
Same weakness: CWE-400

V. Comments for CVE-2026-54712

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