CVE-2026-81872
Fixed in a distro release EPSS <1%CVSS 6.3
OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to version 0.21.0, the go.opentelemetry.io/otel/sdk/log BatchingProcessor can enter a tight CPU loop when attacker-driven log emission fills its asynchronous export buffer while the exporter is backpressured. NewBatchingProcessor wraps the exporter with newBufferExporter(exporter, 1), and the poll loop calls queue.TryDequeue and bufferExporter.EnqueueExport before immediately signaling pollTrigger whenever the queue remains at or above batchSize. Because a failed nonblocking EnqueueExport leaves the queue length unchanged, the processor repeatedly retries without waiting for its ticker, exhausting CPU and degrading or denying service in the embedding process. This issue is fixed in version 0.21.0.
Products: open-telemetry opentelemetry-go
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | go.opentelemetry.io/otel/sdk/log | 0.21.0 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | commercial-grafana-11.6 | no fix |
| Chainguard | commercial-grafana-12.1 | no fix |
| Chainguard | commercial-grafana-12.2 | no fix |
| Chainguard | commercial-grafana-12.3 | no fix |
| Chainguard | dagger | no fix |
| Chainguard | datadog-agent-7.77 | no fix |
| Chainguard | datadog-agent-7.77-full | no fix |
| Chainguard | datadog-agent-7.77-serverless-init | no fix |
| Chainguard | datadog-agent-7.79 | no fix |
| Chainguard | datadog-agent-7.79-full | no fix |
| Chainguard | datadog-agent-7.79-serverless-init | no fix |
| Chainguard | datadog-agent-7.82 | no fix |
| Chainguard | datadog-agent-7.82-full | no fix |
| Chainguard | datadog-agent-7.82-serverless-init | no fix |
| Chainguard | datadog-agent-fips-7.77 | no fix |
| Chainguard | datadog-agent-fips-7.77-full | no fix |
| Chainguard | datadog-agent-fips-7.77-serverless-init | no fix |
| Chainguard | datadog-agent-fips-7.78 | no fix |
| Chainguard | datadog-agent-fips-7.78-full | no fix |
| Chainguard | datadog-agent-fips-7.78-serverless-init | no fix |
| Chainguard | elastic-agent-9.3 | 9.3.8-r8 |
| Chainguard | elastic-agent-fips-9.2 | 9.2.8-r20 |
| Chainguard | elastic-agent-fips-9.3 | no fix |
| Chainguard | elastic-otel-collector-9.3 | 9.3.8-r8 |
| Chainguard | elastic-otel-collector-fips-9.3 | no fix |
| Chainguard | grafana-11.6 | no fix |
| Chainguard | grafana-12.1 | no fix |
| Chainguard | grafana-12.2 | no fix |
| Chainguard | grafana-12.3 | 12.3.11-r8 |
| Chainguard | grafana-fips-11.6 | no fix |
| Chainguard | grafana-fips-12.2 | no fix |
| Chainguard | grafana-fips-12.3 | 12.3.11-r6 |
| Chainguard | guac | no fix |
| Chainguard | guacone | no fix |
| Chainguard | kubescape | 4.0.16-r0 |
| Chainguard | kubescape-operator | 0.2.188-r0 |
| Chainguard | kubescape-operator-fips | 0.2.188-r0 |
| Chainguard | kubescape-server | 4.0.16-r0 |
| Chainguard | kubescape-server-downloader | 4.0.16-r0 |
| Chainguard | kubescape-server-fips | 4.0.16-r0 |
| Chainguard | kubescape-server-fips-downloader | 4.0.16-r0 |
| Chainguard | redpanda-operator | no fix |
| Chainguard | redpanda-operator-25.1 | no fix |
| Chainguard | redpanda-operator-25.2 | no fix |
| Chainguard | redpanda-operator-25.3 | 25.3.11-r0 |
| Chainguard | redpanda-operator-26.1 | no fix |
| Chainguard | redpanda-operator-26.2 | no fix |
| Chainguard | starboard-exporter | 1.2.31-r0 |
| Chainguard | starboard-exporter-fips | 1.2.33-r0 |
| Chainguard | traefik-3.6 | no fix |
| Chainguard | traefik-3.7 | 3.7.14-r0 |
| Chainguard | traefik-fips-3.6 | no fix |
| Chainguard | traefik-fips-3.7 | 3.7.14-r0 |
| Debian 13 | golang-opentelemetry-otel | no fix |
| Debian 14 | golang-opentelemetry-otel | no fix |
| Red Hat hummingbird 1 | caddy | 0:2.11.4-0.4.hum1 |
| Red Hat hummingbird 1 | distribution | 0:3.1.1-0.2.hum1 |
| Red Hat hummingbird 1 | grafana12.4 | 0:12.4.10-0.6.hum1 |
| Red Hat hummingbird 1 | grafana13.1 | 0:13.1.6-0.2.hum1 |
| Red Hat hummingbird 1 | grafana13.2 | 0:13.2.1-0.5.hum1 |
| Red Hat hummingbird 1 | helm3 | 0:3.22.0-0.2.hum1 |
| Red Hat hummingbird 1 | helm4 | 0:4.3.0-0.2.hum1 |
| Red Hat hummingbird 1 | jaeger | 0:2.20.0-0.9.hum1 |
| Red Hat hummingbird 1 | opentelemetry-collector | 0:0.161.0-0.1.hum1 |
| Red Hat hummingbird 1 | opentelemetry-collector-contrib | 0:0.161.0-0.1.hum1 |
| Red Hat hummingbird 1 | opentelemetry-collector-k8s | 0:0.161.0-0.1.hum1 |
| Red Hat hummingbird 1 | opentofu1.12 | 0:1.12.6-0.3.hum1 |
| SUSE Linux Enterprise Server 16.0 | distribution | 3.1.1-160000.4.1 |
| SUSE Linux Enterprise Server 16.0 | helm | 4.3.0-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | distribution | 3.1.1-160000.4.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | helm | 4.3.0-160000.1.1 |
| SUSE Linux Micro 6.2 | helm | 4.3.0-160000.1.1 |
| Ubuntu 22.04 LTS | golang-opentelemetry-otel | no fix |
| Ubuntu 24.04 LTS | golang-opentelemetry-otel | no fix |
| Ubuntu 26.04 LTS | golang-opentelemetry-otel | no fix |
| Ubuntu 26.10 | golang-opentelemetry-otel | no fix |
| Wolfi | dagger | no fix |
| Wolfi | datadog-agent-7.77 | no fix |
| Wolfi | datadog-agent-7.77-full | no fix |
| Wolfi | datadog-agent-7.79 | no fix |
| Wolfi | datadog-agent-7.79-full | no fix |
| Wolfi | grafana-12.3 | 12.3.11-r8 |
| Wolfi | guac | no fix |
| Wolfi | guacone | no fix |
| Wolfi | kubescape | 4.0.16-r0 |
| Wolfi | kubescape-operator | 0.2.188-r0 |
| Wolfi | traefik-3.6 | no fix |
| Wolfi | traefik-3.7 | 3.7.14-r0 |
| openSUSE Leap 16.0 | distribution | 3.1.1-160000.4.1 |
| openSUSE Leap 16.0 | helm | 4.3.0-160000.1.1 |
| openSUSE Tumbleweed | alloy | 1.20.1-1.1 |
| openSUSE Tumbleweed | distribution | 3.1.1-8.1 |
| openSUSE Tumbleweed | helm | 4.3.0-3.1 |
| openSUSE Tumbleweed | helm3 | 3.22.0-2.1 |