{"id":"UBUNTU-CVE-2026-116694","details":"OpenTelemetry Python provides the Python API and SDK for OpenTelemetry. Prior to 1.45.0, JaegerPropagator.extract() in opentelemetry-propagator-jaeger processes inbound uberctx-* baggage values without entry, per-entry byte, or total-byte limits. Services that enable the optional Jaeger propagator can perform unnecessary CPU work and short-lived heap allocations when an untrusted carrier supplies numerous or oversized values, contributing to denial of service when transport-level limits do not constrain the input. Common default Python HTTP server limits reduce the practical impact, while custom getters, non-HTTP transports, or raised header limits increase exposure. This issue is fixed in version 1.45.0.","modified":"2026-10-28T20:17:45.948312762Z","published":"2026-10-27T21:18:00Z","upstream":["CVE-2026-116694"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-116694"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-116694"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-python/security/advisories/GHSA-f5m9-jfrj-jjj7"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-python/pull/5556"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-python/commit/65c4eeb87cd3815dc795d3b5485e9ea0d5affcc7"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.45.0"}],"affected":[{"package":{"name":"python-opentelemetry","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/python-opentelemetry?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.39.1-2","1.42.1-1","1.43.0-1","1.44.0-1","1.44.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-opentelemetry-api","binary_version":"1.44.0-2"},{"binary_name":"python3-opentelemetry-configuration","binary_version":"1.44.0-2"},{"binary_name":"python3-opentelemetry-exporter-otlp","binary_version":"1.44.0-2"},{"binary_name":"python3-opentelemetry-exporter-otlp-proto-common","binary_version":"1.44.0-2"},{"binary_name":"python3-opentelemetry-exporter-otlp-proto-grpc","binary_version":"1.44.0-2"},{"binary_version":"1.44.0-2","binary_name":"python3-opentelemetry-exporter-otlp-proto-http"},{"binary_version":"1.44.0-2","binary_name":"python3-opentelemetry-exporter-prometheus"},{"binary_version":"1.44.0-2","binary_name":"python3-opentelemetry-exporter-zipkin-json"},{"binary_version":"1.44.0-2","binary_name":"python3-opentelemetry-exporter-zipkin-proto-http"},{"binary_version":"1.44.0-2","binary_name":"python3-opentelemetry-opentracing-shim"},{"binary_name":"python3-opentelemetry-propagator-b3","binary_version":"1.44.0-2"},{"binary_version":"1.44.0-2","binary_name":"python3-opentelemetry-propagator-jaeger"},{"binary_name":"python3-opentelemetry-proto","binary_version":"1.44.0-2"},{"binary_name":"python3-opentelemetry-proto-json","binary_version":"1.44.0-2"},{"binary_name":"python3-opentelemetry-sdk","binary_version":"1.44.0-2"},{"binary_name":"python3-opentelemetry-semantic-conventions","binary_version":"1.44.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116694.json"}},{"package":{"name":"python-opentelemetry","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/python-opentelemetry?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.38.0-1","1.38.0-2","1.39.1-1","1.39.1-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.39.1-2","binary_name":"python3-opentelemetry-api"},{"binary_version":"1.39.1-2","binary_name":"python3-opentelemetry-exporter-otlp"},{"binary_name":"python3-opentelemetry-exporter-otlp-proto-common","binary_version":"1.39.1-2"},{"binary_version":"1.39.1-2","binary_name":"python3-opentelemetry-exporter-otlp-proto-grpc"},{"binary_name":"python3-opentelemetry-exporter-otlp-proto-http","binary_version":"1.39.1-2"},{"binary_name":"python3-opentelemetry-exporter-prometheus","binary_version":"1.39.1-2"},{"binary_name":"python3-opentelemetry-exporter-zipkin-json","binary_version":"1.39.1-2"},{"binary_version":"1.39.1-2","binary_name":"python3-opentelemetry-exporter-zipkin-proto-http"},{"binary_name":"python3-opentelemetry-opentracing-shim","binary_version":"1.39.1-2"},{"binary_name":"python3-opentelemetry-propagator-b3","binary_version":"1.39.1-2"},{"binary_version":"1.39.1-2","binary_name":"python3-opentelemetry-propagator-jaeger"},{"binary_version":"1.39.1-2","binary_name":"python3-opentelemetry-proto"},{"binary_name":"python3-opentelemetry-sdk","binary_version":"1.39.1-2"},{"binary_version":"1.39.1-2","binary_name":"python3-opentelemetry-semantic-conventions"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116694.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}