Skip to content

chore(deps): update module go.opentelemetry.io/otel/exporters/otlp/otlptrace to v1.45.0 [security] - #226

Merged
renovate[bot] merged 1 commit into
masterfrom
renovate/go-go.opentelemetry.io-otel-exporters-otlp-otlptrace-vulnerability
Sep 18, 2026
Merged

renovate[bot] merged 1 commit into
masterfrom
renovate/go-go.opentelemetry.io-otel-exporters-otlp-otlptrace-vulnerability

Conversation

@renovate

@renovate renovate Bot commented Sep 18, 2026

Copy link
Copy Markdown
Contributor

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package Change Age Confidence
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.40.0v1.45.0 age confidence

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.


OpenTelemetry-Go: Exporter config logging may leak endpoint URLs in info logs

CVE-2026-81870 / GHSA-8wmf-6v46-5gfg

More information

Details

Summary

OpenTelemetry Go versions 1.5.0 through 1.44.0 can include trace exporter endpoint configuration in an internal diagnostic log emitted when an SDK TracerProvider is created. The default OpenTelemetry logger does not emit this event. Exposure requires an application to install a logger that enables OpenTelemetry's internal Info-level diagnostics and for someone other than the intended audience to have access to those logs.

The logged configuration can disclose the address of the trace collector and whether the OTLP/HTTP connection is configured as insecure. The Zipkin exporter logs its complete collector URL, so credentials in URL userinfo or tokens in the query string are also disclosed if an application embeds them there. OTLP authentication headers, TLS key material, and exported span data are not included in this log.

Exporter MarshalLog implementations that caused this configuration to be included in internal logs were introduced by a1fff3c.

Details

When sdk/trace.NewTracerProvider constructs a provider, it records a TracerProvider created internal Info event containing the provider configuration. In affected versions, the configuration's MarshalLog methods recursively include:

  1. the provider's span processors;
  2. each processor's span exporter; and
  3. for the OTLP trace exporter, its client configuration.

This causes the following values to be present in the event:

  • OTLP trace gRPC: the configured endpoint;
  • OTLP trace HTTP: the configured endpoint and the Insecure flag; and
  • Zipkin: the complete collector URL.

OpenTelemetry Go does not emit this event with its default logger, which only emits errors. An application must explicitly configure a sufficiently verbose logger with otel.SetLogger. The required logr verbosity is version-dependent:

  • versions 1.5.0 through 1.14.x use V(1) for this Info event; and
  • versions 1.15.0 through 1.44.0 use V(4).

OTLP header configuration is not part of the marshaled object, so credentials supplied with WithHeaders or the corresponding environment variables are not exposed. The documented OTLP WithEndpoint input is a collector address rather than a credential-bearing URL. The higher-risk case is therefore the Zipkin collector URL, which is retained and logged in full, or an application passing sensitive data in an OTLP endpoint outside the documented format.

Proof of concept

The following program demonstrates the behavior with OpenTelemetry Go 1.44.0. It deliberately places credentials and a token in the Zipkin collector URL and enables internal Info logging:

package main

import (
	"bytes"
	"context"
	"fmt"

	"github.com/go-logr/logr/funcr"
	"go.opentelemetry.io/otel"
	"go.opentelemetry.io/otel/exporters/zipkin"
	sdktrace "go.opentelemetry.io/otel/sdk/trace"
)

func main() {
	var logs bytes.Buffer
	otel.SetLogger(funcr.New(func(_, args string) {
		_, _ = logs.WriteString(args)
	}, funcr.Options{Verbosity: 4}))

	exporter, err := zipkin.New(
		"http://user:pass@zipkin.internal:9411/api/v2/spans?token=secret",
	)
	if err != nil {
		panic(err)
	}

	tp := sdktrace.NewTracerProvider(sdktrace.WithBatcher(exporter))
	_ = tp.Shutdown(context.Background())

	fmt.Println(logs.String())
}

The TracerProvider created event contains:

http://user:pass@zipkin.internal:9411/api/v2/spans?token=secret

For versions before 1.15.0, set funcr.Options{Verbosity: 1} instead.

Impact

This is a conditional disclosure through application logs. Affected applications must enable verbose OpenTelemetry internal diagnostics and configure a trace exporter containing information they do not intend to expose to readers of those logs. In that configuration, a person or system with log access can learn the trace collector address and internal network topology. If credentials or tokens are embedded directly in a Zipkin collector URL, those values can also be recovered from the logs.

There is no exposure with the default OpenTelemetry logger, and the vulnerable log is generated from local application configuration rather than remotely supplied span data. OTLP authentication headers, certificate or private-key contents, and telemetry payloads are not logged by this path.

Remediation

Upgrade the affected OpenTelemetry Go modules to version 1.45.0 or later. The fix in 3a1412d stops recursively marshaling exporter and client configuration and records their types instead.

If an immediate upgrade is not possible:

  • keep OpenTelemetry internal logging below the Info verbosity described above;
  • do not embed credentials or tokens in exporter endpoint URLs; use authentication headers or another supported credential mechanism; and
  • restrict access to existing logs and rotate any credentials that may already have been recorded.

Severity

  • CVSS Score: 2.0 / 10 (Low)
  • Vector String: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


Release Notes

open-telemetry/opentelemetry-go (go.opentelemetry.io/otel/exporters/otlp/otlptrace)

v1.45.0

Compare Source

v1.44.0: /v0.66.0/v0.20.0/v0.0.17

Compare Source

Added
  • Add ByteSlice and ByteSliceValue functions for new BYTESLICE attribute type in go.opentelemetry.io/otel/attribute. (#​7948)
  • Apply attribute value limit to the KindBytes attribute type in go.opentelemetry.io/otel/sdk/log. (#​7990)
  • Apply attribute value limit to the BYTESLICE attribute type in go.opentelemetry.io/otel/sdk/trace. (#​7990)
  • Support BYTESLICE attributes in go.opentelemetry.io/otel/trace. (#​8153)
  • Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlptrace. (#​8153)
  • Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlplog. (#​8153)
  • Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlpmetric. (#​8153)
  • Support BYTESLICE attributes in go.opentelemetry.io/otel/exporters/zipkin. (#​8153)
  • Add String method for Value type in go.opentelemetry.io/otel/attribute. (#​8142)
  • Add Slice and SliceValue functions for new SLICE attribute type in go.opentelemetry.io/otel/attribute. (#​8166)
  • Support SLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlptrace. (#​8216)
  • Support SLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlplog. (#​8216)
  • Support SLICE attributes in go.opentelemetry.io/otel/exporters/otlp/otlpmetric. (#​8216)
  • Support SLICE attributes in go.opentelemetry.io/otel/exporters/zipkin. (#​8216)
  • Apply AttributeValueLengthLimit to attribute.SLICE type attribute values in go.opentelemetry.io/otel/sdk/trace, recursively truncating contained string values. (#​8217)
  • Add Error field on Record type in go.opentelemetry.io/otel/log/logtest. (#​8148)
  • Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc. (#​8157)
  • Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp. (#​8157)
  • Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc. (#​8157)
  • Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#​8157)
  • Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. (#​8157)
  • Add WithMaxRequestSize option in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8157)
  • Add Settable to go.opentelemetry.io/otel/metric/x to allow reusing attribute options. (#​8178)
  • Add experimental support for splitting metric data across multiple batches in go.opentelemetry.io/otel/sdk/metric.
    Set OTEL_GO_X_METRIC_EXPORT_BATCH_SIZE=<max_size> to enable for all periodic readers.
    See go.opentelemetry.io/otel/sdk/metric/internal/x for feature documentation. (#​8071)
  • Add experimental self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc.
    Enable with OTEL_GO_X_SELF_OBSERVABILITY=true environment variable.
    See go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc/internal/x for feature documentation. (#​8192)
  • Add experimental self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp.
    Enable with OTEL_GO_X_SELF_OBSERVABILITY=true environment variable.
    See go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp/internal/x for feature documentation. (#​8194)
  • Add experimental self-observability metrics in go.opentelemetry.io/otel/exporters/stdout/stdoutlog.
    Enable with OTEL_GO_X_SELF_OBSERVABILITY=true environment variable.
    See go.opentelemetry.io/otel/stdout/stdoutlog/internal/x for feature documentation. (#​8263)
  • Add WithDefaultAttributes to go.opentelemetry.io/otel/metric/x to support setting default attributes on instruments. (#​8135)
  • Add go.opentelemetry.io/otel/semconv/v1.41.0 package.
    The package contains semantic conventions from the v1.41.0 version of the OpenTelemetry Semantic Conventions.
    See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.40.0. (#​8324)
  • Add Observable variants of instruments to go.opentelemetry.io/otel/semconv/v1.41.0 package. (#​8350)
  • Generate explicit histogram bucket boundaries from weaver configuration for HTTP and RPC duration instruments in go.opentelemetry.io/otel/semconv/v1.41.0. (#​8002)
Changed
  • ⚠️ Breaking Change: go.opentelemetry.io/otel/sdk/metric now applies a default cardinality limit of 2000 to comply with the Metrics SDK specification recommendation.
    New attribute sets are dropped when the cardinality limit is reached. The measurement of these sets are aggregated into a special attribute set containing attribute.Bool("otel.metric.overflow", true).
    This can break users who relied on the previous unlimited default.
    Set WithCardinalityLimit(0) or the deprecated OTEL_GO_X_CARDINALITY_LIMIT=0 environment variable to preserve unlimited cardinality.
    Note that support for OTEL_GO_X_CARDINALITY_LIMIT may be removed in a future release. (#​8247)
  • ErrorType in go.opentelemetry.io/otel/semconv now unwraps errors created with fmt.Errorf when deriving the error.type attribute. (#​8133)
  • go.opentelemetry.io/otel/sdk/log now unwraps error chains created with fmt.Errorf when deriving the error.type attribute from errors on log records. (#​8133)
  • Set.MarshalLog method in go.opentelemetry.io/otel/attribute now uses Value.String formatting following the OpenTelemetry AnyValue representation for non-OTLP protocols. (#​8169)
  • Optimize go.opentelemetry.io/otel/sdk/metric to return a drop reservoir and short-circuit Offer calls to the exemplar reservoir when exemplar.AlwaysOffFilter is configured. (#​8211) (#​8267)
  • Optimize go.opentelemetry.io/otel/sdk/metric to return a drop reservoir for asynchronous instruments when exemplar.TraceBasedFilter is configured. (#​8286)
Deprecated
  • Deprecate Value.Emit method in go.opentelemetry.io/otel/attribute.
    Use Value.String instead. (#​8176)
Fixed
  • Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc.
    The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
  • Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp.
    The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
  • Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc.
    The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
  • Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp.
    The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
  • Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc.
    The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
  • Limit OTLP request size to 64 MiB by default in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp.
    The limit applies before compression, oversized requests are treated as non-retryable errors, and the limit can be configured with the new WithMaxRequestSize option. (#​8157, #​8365)
  • Fix gzipped request body replay on redirect in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#​8135)
  • Fix gzipped request body replay on redirect in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8152)
  • go.opentelemetry.io/otel/exporters/prometheus now uses Value.String formatting for label values following the OpenTelemetry AnyValue representation for non-OTLP protocols. (#​8170)
  • Propagate errors from the exporter when calling Shutdown on BatchSpanProcessor in go.opentelemetry.io/otel/sdk/trace. (#​8197)
  • Fix stale status code reporting on self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp and go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8226)
  • Fix a concurrent Collect data race and potential panic in go.opentelemetry.io/otel/exporters/prometheus when WithResourceAsConstantLabels option is used. (#​8227)
  • Fix race condition in FixedSizeReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar by reverting #​7447. (#​8249)
  • Fix FixedSizeReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar to safely handle zero size.
    A capacity check in the constructor initializes the reservoir safely and skips initialization for zero-cap; early returns in Offer() and Collect() ensure no-op behavior. (#​8295)
  • Fix counting of spans and logs in self-observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp, go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc, and go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8254)
  • Drop conflicting scope attributes named name, version, or schema_url from metric labels in go.opentelemetry.io/otel/exporters/prometheus, preserving the dedicated otel_scope_name, otel_scope_version, and otel_scope_schema_url labels. (#​8264)
  • Close schema files opened by ParseFile in go.opentelemetry.io/otel/schema/v1.0 and go.opentelemetry.io/otel/schema/v1.1. (GHSA-995v-fvrw-c78m)
  • Enforce the 8192-byte baggage size limit during extraction/parsing, changing behavior when the limit is exceeded in go.opentelemetry.io/otel/baggage and go.opentelemetry.io/otel/propagation. (#​8222)
  • Fix go.opentelemetry.io/otel/semconv/v1.41.0 to include Attr* helper methods for required attributes on observable instruments. (#​8361)
  • Limit baggage extraction error reporting in go.opentelemetry.io/otel/propagation to prevent malformed or oversized baggage headers from flooding logs. (GHSA-5wrp-cwcj-q835)
What's Changed

Important

✂ PR body was truncated to here.


Configuration

📅 Schedule: (UTC)

  • Branch creation
    • At any time (no schedule defined)
  • Automerge
    • At any time (no schedule defined)

🚦 Automerge: Enabled.

Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate Bot added the security Security-related issues label Sep 18, 2026
@renovate
renovate Bot enabled auto-merge (squash) September 18, 2026 02:14
@renovate

renovate Bot commented Sep 18, 2026

Copy link
Copy Markdown
Contributor Author

ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

  • 4 additional dependencies were updated

Details:

Package Change
github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 -> v2.29.0
go.opentelemetry.io/proto/otlp v1.9.0 -> v1.11.0
google.golang.org/genproto/googleapis/api v0.0.0-20260526163538-3dc84a4a5aaa -> v0.0.0-20260720211330-0afa2a65878a
google.golang.org/genproto/googleapis/rpc v0.0.0-20260526163538-3dc84a4a5aaa -> v0.0.0-20260720211330-0afa2a65878a

@renovate
renovate Bot force-pushed the renovate/go-go.opentelemetry.io-otel-exporters-otlp-otlptrace-vulnerability branch from fafcc5a to 810b3fd Compare September 18, 2026 05:03
@github-actions

Copy link
Copy Markdown
Contributor

Container and Helm Chart Available

Multi-architecture container image and Helm chart are available for testing (expires in 24 hours).

Pull Commands

Container Image:

docker pull ttl.sh/minecraft-operator-226-1d:latest

Helm Chart:

# Install operator (CRDs are applied automatically at startup)
helm install minecraft-operator \
  oci://ttl.sh/minecraft-operator \
  --version 0.0.0-pr.226

Architectures: linux/amd64, linux/arm64
Commit: 4eaf795

@renovate
renovate Bot merged commit ced24a0 into master Sep 18, 2026
11 checks passed
@renovate
renovate Bot deleted the renovate/go-go.opentelemetry.io-otel-exporters-otlp-otlptrace-vulnerability branch September 18, 2026 05:09
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

Container Available security Security-related issues

Projects

None yet

Development

Successfully merging this pull request may close these issues.

0 participants