CVE-2026-81872

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Source
https://cve.org/CVERecord?id=CVE-2026-81872
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81872.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-81872
Aliases
Downstream
AZL (2)
CGA (106)
CLEANSTART (4)
DEBIAN (1)
ECHO (1)
MINI (108)
openSUSE (6)
RHSA (12)
SUSE (4)
UBUNTU (1)
Related
openSUSE (6)
SUSE (4)
Published
2026-09-16T20:42:23Z
Modified
2026-10-28T02:31:00Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
OpenTelemetry-Go: BatchProcessor can busy-spin when export buffer is full
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-400",
        "CWE-834"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81872.json"
}
References

Affected packages

Git / github.com/open-telemetry/opentelemetry-go

Affected ranges

Type
GIT
Repo
https://github.com/open-telemetry/opentelemetry-go
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ced177b79530b937530c4f9030ab2115367c5de9
Fixed
ba71b09e6ed272e93a669aeaec1e98b1df4cc582
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "0.21.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "ba71b09e6ed272e93a669aeaec1e98b1df4cc582"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

bridge/opencensus/examples/bridge/v0.*
bridge/opencensus/examples/bridge/v0.14.0
bridge/opencensus/v0.*
bridge/opencensus/v0.14.0
bridge/opencensus/v0.15.0
bridge/opencensus/v0.16.0
bridge/opencensus/v0.17.0
bridge/opencensus/v0.18.0
bridge/opencensus/v0.19.0
bridge/opencensus/v0.20.0
bridge/opentracing/v0.*
bridge/opentracing/v0.11.0
bridge/opentracing/v0.12.0
bridge/opentracing/v0.13.0
bridge/opentracing/v0.14.0
bridge/opentracing/v0.15.0
bridge/opentracing/v0.16.0
bridge/opentracing/v0.17.0
bridge/opentracing/v0.18.0
bridge/opentracing/v0.19.0
bridge/opentracing/v0.20.0
example/basic/v0.*
example/basic/v0.10.0
example/basic/v0.11.0
example/basic/v0.12.0
example/basic/v0.13.0
example/basic/v0.14.0
example/basic/v0.15.0
example/basic/v0.2.1
example/basic/v0.2.3
example/basic/v0.3.0
example/basic/v0.4.0
example/basic/v0.4.1
example/basic/v0.4.2
example/basic/v0.4.3
example/basic/v0.6.0
example/basic/v0.7.0
example/basic/v0.8.0
example/basic/v0.9.0
example/grpc/v0.*
example/grpc/v0.10.0
example/grpc/v0.2.1
example/grpc/v0.2.3
example/grpc/v0.3.0
example/grpc/v0.4.0
example/grpc/v0.4.1
example/grpc/v0.4.2
example/grpc/v0.4.3
example/grpc/v0.6.0
example/grpc/v0.7.0
example/grpc/v0.8.0
example/grpc/v0.9.0
example/http-stackdriver/v0.*
example/http-stackdriver/v0.2.1
example/http-stackdriver/v0.2.3
example/http/v0.*
example/http/v0.10.0
example/http/v0.2.1
example/http/v0.2.3
example/http/v0.3.0
example/http/v0.4.0
example/http/v0.4.1
example/http/v0.4.2
example/http/v0.4.3
example/http/v0.6.0
example/http/v0.7.0
example/http/v0.8.0
example/http/v0.9.0
example/jaeger/v0.*
example/jaeger/v0.10.0
example/jaeger/v0.11.0
example/jaeger/v0.12.0
example/jaeger/v0.13.0
example/jaeger/v0.14.0
example/jaeger/v0.15.0
example/jaeger/v0.16.0
example/jaeger/v0.17.0
example/jaeger/v0.18.0
example/jaeger/v0.19.0
example/jaeger/v0.2.1
example/jaeger/v0.2.3
example/jaeger/v0.20.0
example/jaeger/v0.3.0
example/jaeger/v0.4.0
example/jaeger/v0.4.1
example/jaeger/v0.4.2
example/jaeger/v0.4.3
example/jaeger/v0.6.0
example/jaeger/v0.7.0
example/jaeger/v0.8.0
example/jaeger/v0.9.0
example/namedtracer/v0.*
example/namedtracer/v0.10.0
example/namedtracer/v0.11.0
example/namedtracer/v0.12.0
example/namedtracer/v0.13.0
example/namedtracer/v0.14.0
example/namedtracer/v0.15.0
example/namedtracer/v0.16.0
example/namedtracer/v0.17.0
example/namedtracer/v0.18.0
example/namedtracer/v0.19.0
example/namedtracer/v0.2.1
example/namedtracer/v0.2.3
example/namedtracer/v0.20.0
example/namedtracer/v0.3.0
example/namedtracer/v0.4.0
example/namedtracer/v0.4.1
example/namedtracer/v0.4.2
example/namedtracer/v0.4.3
example/namedtracer/v0.6.0
example/namedtracer/v0.7.0
example/namedtracer/v0.8.0
example/namedtracer/v0.9.0
example/opencensus/v0.*
example/opencensus/v0.15.0
example/opencensus/v0.16.0
example/opencensus/v0.17.0
example/opencensus/v0.18.0
example/opencensus/v0.19.0
example/opencensus/v0.20.0
example/otel-collector/v0.*
example/otel-collector/v0.10.0
example/otel-collector/v0.11.0
example/otel-collector/v0.12.0
example/otel-collector/v0.13.0
example/otel-collector/v0.14.0
example/otel-collector/v0.15.0
example/otel-collector/v0.16.0
example/otel-collector/v0.17.0
example/otel-collector/v0.18.0
example/otel-collector/v0.19.0
example/otel-collector/v0.20.0
example/otel-collector/v0.6.0
example/otel-collector/v0.7.0
example/otel-collector/v0.8.0
example/otel-collector/v0.9.0
example/prom-collector/v0.*
example/prom-collector/v0.16.0
example/prom-collector/v0.17.0
example/prom-collector/v0.18.0
example/prom-collector/v0.19.0
example/prom-collector/v0.20.0
example/prometheus/v0.*
example/prometheus/v0.10.0
example/prometheus/v0.11.0
example/prometheus/v0.12.0
example/prometheus/v0.13.0
example/prometheus/v0.14.0
example/prometheus/v0.15.0
example/prometheus/v0.16.0
example/prometheus/v0.17.0
example/prometheus/v0.18.0
example/prometheus/v0.19.0
example/prometheus/v0.2.1
example/prometheus/v0.2.3
example/prometheus/v0.20.0
example/prometheus/v0.3.0
example/prometheus/v0.4.0
example/prometheus/v0.4.1
example/prometheus/v0.4.2
example/prometheus/v0.4.3
example/prometheus/v0.6.0
example/prometheus/v0.7.0
example/prometheus/v0.8.0
example/prometheus/v0.9.0
example/zipkin/v0.*
example/zipkin/v0.10.0
example/zipkin/v0.11.0
example/zipkin/v0.12.0
example/zipkin/v0.13.0
example/zipkin/v0.14.0
example/zipkin/v0.15.0
example/zipkin/v0.16.0
example/zipkin/v0.17.0
example/zipkin/v0.18.0
example/zipkin/v0.19.0
example/zipkin/v0.20.0
example/zipkin/v0.3.0
example/zipkin/v0.4.0
example/zipkin/v0.4.1
example/zipkin/v0.4.2
example/zipkin/v0.4.3
example/zipkin/v0.6.0
example/zipkin/v0.7.0
example/zipkin/v0.8.0
example/zipkin/v0.9.0
exporter/metric/prometheus/v0.*
exporter/metric/prometheus/v0.2.0
exporter/metric/prometheus/v0.2.1
exporter/trace/jaeger/v0.*
exporter/trace/jaeger/v0.1.1
exporter/trace/jaeger/v0.1.2
exporter/trace/jaeger/v0.2.0
exporter/trace/jaeger/v0.2.1
exporter/trace/stackdriver/v0.*
exporter/trace/stackdriver/v0.1.1
exporter/trace/stackdriver/v0.1.2
exporter/trace/stackdriver/v0.2.0
exporter/trace/stackdriver/v0.2.1
exporter/trace/stdout/v0.*
exporter/trace/stdout/v0.1.1
exporter/trace/stdout/v0.1.2
exporters/metric/prometheus/v0.*
exporters/metric/prometheus/v0.10.0
exporters/metric/prometheus/v0.11.0
exporters/metric/prometheus/v0.12.0
exporters/metric/prometheus/v0.13.0
exporters/metric/prometheus/v0.14.0
exporters/metric/prometheus/v0.15.0
exporters/metric/prometheus/v0.16.0
exporters/metric/prometheus/v0.17.0
exporters/metric/prometheus/v0.18.0
exporters/metric/prometheus/v0.19.0
exporters/metric/prometheus/v0.2.3
exporters/metric/prometheus/v0.20.0
exporters/metric/prometheus/v0.3.0
exporters/metric/prometheus/v0.4.0
exporters/metric/prometheus/v0.4.1
exporters/metric/prometheus/v0.4.2
exporters/metric/prometheus/v0.4.3
exporters/metric/prometheus/v0.6.0
exporters/metric/prometheus/v0.7.0
exporters/metric/prometheus/v0.8.0
exporters/metric/prometheus/v0.9.0
exporters/otlp/v0.*
exporters/otlp/v0.10.0
exporters/otlp/v0.11.0
exporters/otlp/v0.12.0
exporters/otlp/v0.13.0
exporters/otlp/v0.14.0
exporters/otlp/v0.15.0
exporters/otlp/v0.16.0
exporters/otlp/v0.17.0
exporters/otlp/v0.18.0
exporters/otlp/v0.19.0
exporters/otlp/v0.20.0
exporters/otlp/v0.3.0
exporters/otlp/v0.4.0
exporters/otlp/v0.4.1
exporters/otlp/v0.4.2
exporters/otlp/v0.4.3
exporters/otlp/v0.6.0
exporters/otlp/v0.7.0
exporters/otlp/v0.8.0
exporters/otlp/v0.9.0
exporters/stdout/v0.*
exporters/stdout/v0.10.0
exporters/stdout/v0.11.0
exporters/stdout/v0.12.0
exporters/stdout/v0.13.0
exporters/stdout/v0.14.0
exporters/stdout/v0.15.0
exporters/stdout/v0.16.0
exporters/stdout/v0.17.0
exporters/stdout/v0.18.0
exporters/stdout/v0.19.0
exporters/stdout/v0.20.0
exporters/trace/jaeger/v0.*
exporters/trace/jaeger/v0.10.0
exporters/trace/jaeger/v0.11.0
exporters/trace/jaeger/v0.12.0
exporters/trace/jaeger/v0.13.0
exporters/trace/jaeger/v0.14.0
exporters/trace/jaeger/v0.15.0
exporters/trace/jaeger/v0.16.0
exporters/trace/jaeger/v0.17.0
exporters/trace/jaeger/v0.18.0
exporters/trace/jaeger/v0.19.0
exporters/trace/jaeger/v0.2.3
exporters/trace/jaeger/v0.20.0
exporters/trace/jaeger/v0.3.0
exporters/trace/jaeger/v0.4.0
exporters/trace/jaeger/v0.4.1
exporters/trace/jaeger/v0.4.2
exporters/trace/jaeger/v0.4.3
exporters/trace/jaeger/v0.6.0
exporters/trace/jaeger/v0.7.0
exporters/trace/jaeger/v0.8.0
exporters/trace/jaeger/v0.9.0
exporters/trace/stackdriver/v0.*
exporters/trace/stackdriver/v0.2.3
exporters/trace/zipkin/v0.*
exporters/trace/zipkin/v0.10.0
exporters/trace/zipkin/v0.11.0
exporters/trace/zipkin/v0.12.0
exporters/trace/zipkin/v0.13.0
exporters/trace/zipkin/v0.14.0
exporters/trace/zipkin/v0.15.0
exporters/trace/zipkin/v0.16.0
exporters/trace/zipkin/v0.17.0
exporters/trace/zipkin/v0.18.0
exporters/trace/zipkin/v0.19.0
exporters/trace/zipkin/v0.20.0
exporters/trace/zipkin/v0.3.0
exporters/trace/zipkin/v0.4.0
exporters/trace/zipkin/v0.4.1
exporters/trace/zipkin/v0.4.2
exporters/trace/zipkin/v0.4.3
exporters/trace/zipkin/v0.6.0
exporters/trace/zipkin/v0.7.0
exporters/trace/zipkin/v0.8.0
exporters/trace/zipkin/v0.9.0
metric/v0.*
metric/v0.17.0
metric/v0.18.0
metric/v0.19.0
metric/v0.20.0
oteltest/v0.*
oteltest/v0.17.0
oteltest/v0.18.0
oteltest/v0.19.0
oteltest/v0.20.0
sdk/export/metric/v0.*
sdk/export/metric/v0.17.0
sdk/export/metric/v0.18.0
sdk/export/metric/v0.19.0
sdk/export/metric/v0.20.0
sdk/metric/v0.*
sdk/metric/v0.17.0
sdk/metric/v0.18.0
sdk/metric/v0.19.0
sdk/metric/v0.20.0
sdk/v0.*
sdk/v0.10.0
sdk/v0.11.0
sdk/v0.12.0
sdk/v0.13.0
sdk/v0.14.0
sdk/v0.15.0
sdk/v0.16.0
sdk/v0.17.0
sdk/v0.18.0
sdk/v0.19.0
sdk/v0.20.0
tools/v0.*
tools/v0.2.3
trace/v0.*
trace/v0.17.0
trace/v0.18.0
trace/v0.19.0
trace/v0.20.0
v0.*
v0.1.1
v0.1.2
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.19.0
v0.2.0
v0.2.1
v0.2.1.1
v0.2.2
v0.2.3
v0.20.0
v0.3.0
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.6.0
v0.7.0
v0.8.0
v0.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81872.json"