{"id":"UBUNTU-CVE-2026-39882","details":"OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to 1.43.0, the otlp HTTP exporters (traces/metrics/logs) read the full HTTP response body into an in-memory bytes.Buffer without a size cap. This is exploitable for memory exhaustion when the configured collector endpoint is attacker-controlled (or a network attacker can mitm the exporter connection). This vulnerability is fixed in 1.43.0.","modified":"2026-05-20T16:12:58.480123791Z","published":"2026-04-08T21:17:00Z","upstream":["CVE-2026-39882"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-39882"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-39882"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w8rr-5gcm-pp58"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-go/pull/8108"}],"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_name":"golang-opentelemetry-otel-dev","binary_version":"1.1.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39882.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-2026-39882.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_name":"golang-opentelemetry-otel-dev","binary_version":"1.31.0-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-39882.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-2026-39882.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}