{"id":"UBUNTU-CVE-2026-44967","details":"OpenTelemetry-cpp is the C++ implementation of OpenTelemetry. Prior to release 1.27.0, the OTLP HTTP exporters (traces/metrics/logs) read the full HTTP response into an in-memory vector of bytes 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 opentelemetry-cpp release 1.27.0.","modified":"2026-06-22T09:31:38.678781675Z","published":"2026-06-12T16:16:00Z","upstream":["CVE-2026-44967"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-44967"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-44967"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-cpp/security/advisories/GHSA-5qhm-4rfp-qqvj"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-cpp/issues/3958"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-cpp/pull/4078"},{"type":"REPORT","url":"https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w8rr-5gcm-pp58"}],"affected":[{"package":{"name":"opentelemetry-cpp","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/opentelemetry-cpp?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.17.0-3ubuntu1","1.19.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"opentelemetry-cpp","binary_version":"1.19.0-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44967.json"}},{"package":{"name":"opentelemetry-cpp","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/opentelemetry-cpp?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.19.0-3","1.23.0-2","1.23.0-3","1.23.0-3build1"],"ecosystem_specific":{"binaries":[{"binary_name":"opentelemetry-cpp","binary_version":"1.23.0-3build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44967.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":"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"}]}