VULNERABILITY INTELLIGENCE
CVE-2026-44967
CVSS score5.3 MEDIUM
EPSS probability0.21%
CISA KEVNot currently listed
Published2026-06-12
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
Weakness classification
- security-advisories@github.com: CWE-789
Primary references
- security-advisories@github.com — Issue Tracking
- security-advisories@github.com — Issue Tracking
- security-advisories@github.com — Vendor Advisory
- security-advisories@github.com — Not Applicable, Vendor Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Not Applicable, Vendor Advisory