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fix(deps): update module go.opentelemetry.io/otel/sdk to v1.43.0 [security]#139

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fix(deps): update module go.opentelemetry.io/otel/sdk to v1.43.0 [security]#139
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renovate/go-go.opentelemetry.io-otel-sdk-vulnerability

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@renovate renovate bot commented Mar 2, 2026 •
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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/sdk v1.38.0 → v1.43.0 age confidence

GitHub Vulnerability Alerts

CVE-2026-24051

Impact

The OpenTelemetry Go SDK in version v1.20.0-1.39.0 is vulnerable to Path Hijacking (Untrusted Search Paths) on macOS/Darwin systems. The resource detection code in sdk/resource/host_id.go executes the ioreg system command using a search path. An attacker with the ability to locally modify the PATH environment variable can achieve Arbitrary Code Execution (ACE) within the context of the application.

Patches

This has been patched in d45961b, which was released with v1.40.0.

References

CVE-2026-39883

Summary

The fix for GHSA-9h8m-3fm2-qjrq (CVE-2026-24051) changed the Darwin ioreg command to use an absolute path but left the BSD kenv command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms.

Root Cause

sdk/resource/host_id.go line 42:

if result, err := r.execCommand("kenv", "-q", "smbios.system.uuid"); err == nil {

Compare with the fixed Darwin path at line 58:

result, err := r.execCommand("/usr/sbin/ioreg", "-rd1", "-c", "IOPlatformExpertDevice")

The execCommand helper at sdk/resource/host_id_exec.go uses exec.Command(name, arg...) which searches $PATH when the command name contains no path separator.

Affected platforms (per build tag in host_id_bsd.go:4): DragonFly BSD, FreeBSD, NetBSD, OpenBSD, Solaris.

The kenv path is reached when /etc/hostid does not exist (line 38-40), which is common on FreeBSD systems.

Attack

  1. Attacker has local access to a system running a Go application that imports go.opentelemetry.io/otel/sdk
  2. Attacker places a malicious kenv binary earlier in $PATH
  3. Application initializes OpenTelemetry resource detection at startup
  4. hostIDReaderBSD.read() calls exec.Command("kenv", ...) which resolves to the malicious binary
  5. Arbitrary code executes in the context of the application

Same attack vector and impact as CVE-2026-24051.

Suggested Fix

Use the absolute path:

if result, err := r.execCommand("/bin/kenv", "-q", "smbios.system.uuid"); err == nil {

On FreeBSD, kenv is located at /bin/kenv.

Release Notes

open-telemetry/opentelemetry-go (go.opentelemetry.io/otel/sdk)

v1.43.0: /v0.65.0/v0.19.0

Compare Source

Added

  • Add IsRandom and WithRandom on TraceFlags, and IsRandom on SpanContext in go.opentelemetry.io/otel/trace
    for W3C Trace Context Level 2 Random Trace ID Flag support. (#​8012)
  • Add service detection with WithService in go.opentelemetry.io/otel/sdk/resource. (#​7642)
  • Add DefaultWithContext and EnvironmentWithContext in go.opentelemetry.io/otel/sdk/resource to support plumbing context.Context through default and environment detectors. (#​8051)
  • Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc. (#​8038)
  • Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc. (#​8038)
  • Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. (#​8038)
  • Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp. (#​8038)
  • Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#​8038)
  • Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#​8038)
  • Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest. (#​8038)
  • Add support for per-series start time tracking for cumulative metrics in go.opentelemetry.io/otel/sdk/metric.
    Set OTEL_GO_X_PER_SERIES_START_TIMESTAMPS=true to enable. (#​8060)
  • Add WithCardinalityLimitSelector for metric reader for configuring cardinality limits specific to the instrument kind. (#​7855)

Changed

  • Introduce the EMPTY Type in go.opentelemetry.io/otel/attribute to reflect that an empty value is now a valid value, with INVALID remaining as a deprecated alias of EMPTY. (#​8038)
  • Refactor slice handling in go.opentelemetry.io/otel/attribute to optimize short slice values with fixed-size fast paths. (#​8039)
  • Improve performance of span metric recording in go.opentelemetry.io/otel/sdk/trace by returning early if self-observability is not enabled. (#​8067)
  • Improve formatting of metric data diffs in go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest. (#​8073)

Deprecated

  • Deprecate INVALID in go.opentelemetry.io/otel/attribute. Use EMPTY instead. (#​8038)

Fixed

  • Return spec-compliant TraceIdRatioBased description. This is a breaking behavioral change, but it is necessary to
    make the implementation spec-compliant. (#​8027)
  • Fix a race condition in go.opentelemetry.io/otel/sdk/metric where the lastvalue aggregation could collect the value 0 even when no zero-value measurements were recorded. (#​8056)
  • Limit HTTP response body to 4 MiB in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp to mitigate excessive memory usage caused by a misconfigured or malicious server.
    Responses exceeding the limit are treated as non-retryable errors. (#​8108)
  • Limit HTTP response body to 4 MiB in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp to mitigate excessive memory usage caused by a misconfigured or malicious server.
    Responses exceeding the limit are treated as non-retryable errors. (#​8108)
  • Limit HTTP response body to 4 MiB in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp to mitigate excessive memory usage caused by a misconfigured or malicious server.
    Responses exceeding the limit are treated as non-retryable errors. (#​8108)
  • WithHostID detector in go.opentelemetry.io/otel/sdk/resource to use full path for kenv command on BSD. (#​8113)
  • Fix missing request.GetBody in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp to correctly handle HTTP2 GOAWAY frame. (#​8096)

What's Changed

New Contributors

Full Changelog: open-telemetry/opentelemetry-go@v1.42.0...v1.43.0

v1.42.0: /v0.64.0/v0.18.0/v0.0.16

Compare Source

Added
  • Add go.opentelemetry.io/otel/semconv/v1.40.0 package.
    The package contains semantic conventions from the v1.40.0 version of the OpenTelemetry Semantic Conventions.
    See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.39.0. (#​7985)
  • Add Err and SetErr on Record in go.opentelemetry.io/otel/log to attach an error and set record exception attributes in go.opentelemetry.io/otel/log/sdk. (#​7924)
Changed
  • TracerProvider.ForceFlush in go.opentelemetry.io/otel/sdk/trace joins errors together and continues iteration through SpanProcessors as opposed to returning the first encountered error without attempting exports on subsequent SpanProcessors. (#​7856)
Fixed
  • Fix missing request.GetBody in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp to correctly handle HTTP2 GOAWAY frame. (#​7931)
  • Fix semconv v1.39.0 generated metric helpers skipping required attributes when extra attributes were empty. (#​7964)
  • Preserve W3C TraceFlags bitmask (including the random Trace ID flag) during trace context extraction and injection in go.opentelemetry.io/otel/propagation. (#​7834)
Removed
  • Drop support for [Go 1.24]. (#​7984)

What's Changed

New Contributors

Full Changelog: open-telemetry/opentelemetry-go@v1.41.0...v1.42.0

v1.41.0: /v0.63.0/v0.17.0/v0.0.15

Compare Source

This release is the last to support Go 1.24. The next release will require at least Go 1.25.

Added
Fixed
  • Update Baggage in go.opentelemetry.io/otel/propagation and Parse and New in go.opentelemetry.io/otel/baggage to comply with W3C Baggage specification limits. New and Parse now return partial baggage along with an error when limits are exceeded. Errors from baggage extraction are reported to the global error handler. (#​7880)

What's Changed

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renovate bot commented Mar 2, 2026 •
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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):

  • 5 additional dependencies were updated
  • The go directive was updated for compatibility reasons

Details:

Package Change
go 1.24.0 -> 1.25.0
go.opentelemetry.io/otel v1.38.0 -> v1.43.0
go.opentelemetry.io/otel/sdk/metric v1.38.0 -> v1.43.0
go.opentelemetry.io/otel/metric v1.38.0 -> v1.43.0
go.opentelemetry.io/otel/trace v1.38.0 -> v1.43.0
golang.org/x/sys v0.38.0 -> v0.42.0

@renovate renovate bot requested a review from emmanuelgautier as a code owner March 2, 2026 00:59
@renovate renovate bot force-pushed the renovate/go-go.opentelemetry.io-otel-sdk-vulnerability branch from 6422453 to e7476a3 Compare March 4, 2026 18:07
@renovate renovate bot changed the title fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] - autoclosed Mar 23, 2026
@renovate renovate bot closed this Mar 23, 2026
@renovate renovate bot deleted the renovate/go-go.opentelemetry.io-otel-sdk-vulnerability branch March 23, 2026 01:01
@renovate renovate bot changed the title fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] - autoclosed fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] Mar 23, 2026
@renovate renovate bot reopened this Mar 23, 2026
@renovate renovate bot force-pushed the renovate/go-go.opentelemetry.io-otel-sdk-vulnerability branch 2 times, most recently from e7476a3 to 9404c26 Compare March 23, 2026 05:31
@renovate renovate bot changed the title fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] - autoclosed Mar 27, 2026
@renovate renovate bot closed this Mar 27, 2026
@renovate renovate bot changed the title fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] - autoclosed fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] Mar 30, 2026
@renovate renovate bot reopened this Mar 30, 2026
@renovate renovate bot force-pushed the renovate/go-go.opentelemetry.io-otel-sdk-vulnerability branch 2 times, most recently from 9404c26 to 8e5db8a Compare March 30, 2026 20:50
@renovate renovate bot force-pushed the renovate/go-go.opentelemetry.io-otel-sdk-vulnerability branch from 8e5db8a to 7c9aa78 Compare April 8, 2026 21:01
@renovate renovate bot changed the title fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] fix(deps): update module go.opentelemetry.io/otel/sdk to v1.43.0 [security] Apr 8, 2026
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