5.3
Medium
CVE-2026-39882 OpenTelemetry-Go is the Go implementation of OpenTelemetry
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| opentelemetry-go 1.43 | earliest → < 1.43.0 | 1.43.0 |
Other CVEs of opentelemetry-go
The 9 CVEs of opentelemetry-go →
CVE-2026-81871
OpenTelemetry-Go is the Go implementation of OpenTelemetry
6.3
Medium
CVE-2026-81872
OpenTelemetry-Go is the Go implementation of OpenTelemetry
6.3
Medium
CVE-2026-81869
OpenTelemetry-Go is the Go implementation of OpenTelemetry
5.1
Medium
CVE-2026-81870
OpenTelemetry-Go is the Go implementation of OpenTelemetry
2.0
Low