CVE-2026-45292 OpenTelemetry CVE debrief

Who should care

Defenders responsible for opentelemetry-java deployments should assess exposure and prioritize upgrading to version 1.62.0 or later. They should also monitor for unusual traffic patterns and implement compensating controls to mitigate the impact of a potential attack.

Why it matters

Defenders should prioritize upgrading to version 1.62.0 or later to prevent potential DoS attacks. They should also monitor for unusual traffic patterns and implement compensating controls to mitigate the impact of a potential attack. The vulnerability requires verification from official sources to determine the full scope of affected versions and potential impact.

• Potential denial of service (DoS) attacks
• Unbounded memory allocation and CPU consumption
• Impact on downstream services that receive the malicious request

Technical summary

The opentelemetry-java library, prior to version 1.62.0, contains a vulnerability in the baggage propagation implementation. When parsing oversized baggage, it causes unbounded memory allocation and CPU consumption. This can lead to a denial of service (DoS) attack, potentially impacting downstream services that receive the malicious request. The vulnerability is fixed in version 1.62.0. Defenders should prioritize upgrading to version 1.62.0 or later to prevent potential DoS attacks. They should also monitor for unusual traffic patterns and implement compensating controls to mitigate the impact of a potential  

Defensive priority

Defenders should prioritize upgrading to version 1.62.0 or later to prevent potential DoS attacks. They should also monitor for unusual traffic patterns and implement compensating controls to mitigate the impact of a potential attack.

Recommended defensive actions

• Upgrade to opentelemetry-java version 1.62.0 or later
• Monitor for unusual traffic patterns
• Implement compensating controls to mitigate potential DoS attacks
• Review and update asset inventory to ensure accurate tracking of affected systems
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The vulnerability is described in the CVE record and NVD vulnerability detail page. The fix is documented in the opentelemetry-java release notes and GitHub security advisory. Evidence is limited to official sources and may not cover all affected versions or potential impacts. Defenders should verify the vulnerability details and assess exposure based on their specific environment and configurations. The CVE record was published on 2026-05-28T17:16:32.060Z and has not been modified since then. Additional information may be available  

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.