opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.1%
exploitation probability
1.1%top 38% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
io.opentelemetry · opentelemetry-apiio.opentelemetry · opentelemetry-extension-trace-propagatorsopen-telemetry · opentelemetry-javaReferences
https://access.redhat.com/errata/RHSA-2026:28573https://access.redhat.com/errata/RHSA-2026:36820https://access.redhat.com/errata/RHSA-2026:41951https://access.redhat.com/errata/RHSA-2026:43038https://access.redhat.com/security/cve/CVE-2026-45292https://bugzilla.redhat.com/show_bug.cgi?id=2482785https://github.com/open-telemetry/opentelemetry-java/commit/03837d3c1763bc35464aea1078671e2ef2336a5fhttps://github.com/open-telemetry/opentelemetry-java/pull/8380https://github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0https://github.com/open-telemetry/opentelemetry-java/security/advisories/GHSA-rcgg-9c38-7xpxhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45292.json