{"id":"UBUNTU-CVE-2026-29181","details":"OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit. This vulnerability is fixed in 1.41.0.","modified":"2026-05-20T16:12:18.596820834Z","published":"2026-04-07T21:17:00Z","upstream":["CVE-2026-29181"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-29181"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-29181"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475"}],"affected":[{"package":{"name":"golang-opentelemetry-otel","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-opentelemetry-otel?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.0-2","binary_name":"golang-opentelemetry-otel-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29181.json"}},{"package":{"name":"golang-opentelemetry-otel","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/golang-opentelemetry-otel?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.16.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.16.0-1","binary_name":"golang-opentelemetry-otel-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29181.json"}},{"package":{"name":"golang-opentelemetry-otel","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/golang-opentelemetry-otel?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.31.0-4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.31.0-4","binary_name":"golang-opentelemetry-otel-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29181.json"}},{"package":{"name":"golang-opentelemetry-otel","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/golang-opentelemetry-otel?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.31.0-4","1.31.0-5","1.31.0-6"],"ecosystem_specific":{"binaries":[{"binary_version":"1.31.0-6","binary_name":"golang-opentelemetry-otel-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-29181.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}