What is CVE-2026-54285?

CVE-2026-54285 is a medium-severity vulnerability in Open-telemetry Opentelemetry-js, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-06-22.

How severe is CVE-2026-54285?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in Open-telemetry Opentelemetry-js

CVE-2026-54285

opentelemetry-js is the OpenTelemetry JavaScript Client. Prior to 2.8.0, W3CBaggagePropagator.extract() in @opentelemetry/core does not enforce size limits when parsing inbound baggage HTTP headers. The W3C Baggage specification recommends…

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

Open-telemetry Opentelemetry-js — versions < 2.8.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54285?: CVE-2026-54285 is a medium-severity vulnerability in Open-telemetry Opentelemetry-js, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-06-22.
How severe is CVE-2026-54285?: Medium severity. CVSS v3 base score is 5.3 out of 10.