OpenTelemetry-Go OTLP HTTP exporters read unbounded HTTP response bodies
CVE-2026-39882 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2026-39882, released April 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| amazon-cloudwatch-agent · amzn 2023 | 1.300066.2-2.amzn2023 | ALAS2023-2026-1747 | May 25, 2026 |
| containerd · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-debuginfo · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-debugsource · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-stress · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-stress-debuginfo · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| docker · amzn 2023 | 25.0.14-1.amzn2023.0.5 | ALAS2023-2026-1659 | May 11, 2026 |
| docker-debuginfo · amzn 2023 | 25.0.14-1.amzn2023.0.5 | ALAS2023-2026-1659 | May 11, 2026 |
| docker-debugsource · amzn 2023 | 25.0.14-1.amzn2023.0.5 | ALAS2023-2026-1659 | May 11, 2026 |
| golang-opentelemetry-otel · Debian 14 | 1.43.0-1 | DEBIAN-CVE-2026-39882 | Apr 8, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | OPENSUSE-SU-2026:21483-1 | Jul 30, 2026 |
| grafana · opensuse-leap 16.0 | 12.4.10-bp160.1.1 | OPENSUSE-SU-2026:22125-1 | Nov 7, 2026 |
| grafana · sles 15.7 | 12.4.10-150200.3.94.3 | SUSE-SU-2026:4600-1 | Nov 7, 2026 |
| system-user-grafana · sles 15.7 | 1.0.0-150200.5.8.1 | SUSE-SU-2026:4600-1 | Nov 7, 2026 |
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