CVEvulnerability

CVE-2026-39882

5.3 MEDIUM Published 2026-04-08 Modified 2026-07-24 Official page ↗
Status
Analyzed
Published
2026-04-08
Last modified
2026-07-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-789

Description

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.

Affected configurations

• opentelemetry opentelemetry (< 1.43.0)

Related

Weakness · CWE (1)

  • CWE-789 Memory Allocation with Excessive Size Value weakness

References