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CVE-2026-39882

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-39882

Severity

5.3

Medium

CVSS V3

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Summary

OpenTelemetry-Go OTLP HTTP exporters read unbounded HTTP response bodies

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.

References

Affected packages

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