Resource exhaustion in Linuxfoundation Opentelemetry Instrumentation For Java
CVE-2026-54712
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.003 (18.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-54712?
- CVE-2026-54712 is a medium-severity vulnerability in Linuxfoundation Opentelemetry Instrumentation For Java, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-07-01.
- How severe is CVE-2026-54712?
- Medium severity. CVSS v3 base score is 5.3 out of 10.