Medium 5.3Published May 28, 2026

CVE-2026-45292opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation

Updated under an hour ago (Oct 27, 2026, 2:50 PM ET)

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It affects open-telemetry opentelemetry-java and 18 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for open-telemetry opentelemetry-java

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

open-telemetry opentelemetry-java open_telemetry:opentelemetry_java (from the name)	before 1.62.0	CNA record
io.opentelemetry opentelemetry-api io.opentelemetry:opentelemetry_api (from the name)	1.62.0	CNA record
io.opentelemetry opentelemetry-extension-trace-propagators io.opentelemetry:opentelemetry_extension_trace_propagators (from the name)	1.62.0	CNA record
Red Hat Red Hat Data Grid 8.6.2 redhat:jboss_data_grid	from trace-propagators not affected	CISA ADP
Red Hat Red Hat Migration Toolkit for Applications 8.2 redhat:migration_toolkit_applications	from 1784109883 not affected	CISA ADP
Red Hat Red Hat Offline Knowledge Portal 1.2.12 redhat:offline_knowledge_portal	from 1782239370 not affected	CISA ADP
Red Hat Red Hat OpenShift AI 3.4 redhat:openshift_ai	from 1787105144 not affected	CISA ADP
Red Hat Red Hat OpenShift Dev Spaces 3.29 redhat:openshift_devspaces	from 1783007534 not affected	CISA ADP
Red Hat Exploit Intelligence redhat:exploit_intelligence	0	CISA ADP
Red Hat Migration Toolkit for Containers redhat:rhmt	1	CISA ADP
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References

References

https://github.com/open-telemetry/opentelemetry-java/security/advisories/GHSA-rcgg-9c38-7xpx	x-refsource-confirm
https://github.com/open-telemetry/opentelemetry-java/pull/8380	x-refsource-misc
https://github.com/open-telemetry/opentelemetry-java/commit/03837d3c1763bc35464aea1078671e2ef2336a5f	x-refsource-misc
https://github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0	x-refsource-misc
https://access.redhat.com/errata/RHSA-2026:28573
https://access.redhat.com/errata/RHSA-2026:36820
https://access.redhat.com/errata/RHSA-2026:41951
https://access.redhat.com/errata/RHSA-2026:43038
https://access.redhat.com/errata/RHSA-2026:60520
https://access.redhat.com/security/cve/CVE-2026-45292
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.