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Medium severity5.3NVD Advisory· Published Apr 8, 2026· Updated Apr 9, 2026

CVE-2026-39882

CVE-2026-39882

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttpGo
< 1.43.01.43.0
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttpGo
< 1.43.01.43.0
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttpGo
< 0.19.00.19.0

Affected products

888

Patches

Vulnerability mechanics

References

5

News mentions

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