PT-2026-48892 · Opentelemetry · Opentelemetry-Cpp

Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-44967

NVD

CVSS v3.1

5.3

Medium

Base vector

AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Weakness Enumeration

CWE-789

Related Identifiers

CVE-2026-44967

Affected Products

Opentelemetry-Cpp

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-44967 · Security Note
• https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w8rr-5gcm-pp58 · Note
• https://github.com/open-telemetry/opentelemetry-cpp/pull/4078 · Note
• https://github.com/open-telemetry/opentelemetry-cpp/security/advisories/GHSA-5qhm-4rfp-qqvj · Note
• https://github.com/open-telemetry/opentelemetry-cpp/issues/3958 · Note