chore(deps): update module go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp to v1.43.0 [security] (main)#14967
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ℹ️ Artifact update noticeFile name: go.modIn order to perform the update(s) described in the table above, Renovate ran the
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…lptrace/otlptracehttp to v1.43.0 [security] | datasource | package | from | to | | ---------- | --------------------------------------------------------------- | ------- | ------- | | go | go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp | v1.42.0 | v1.43.0 | Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>
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Cursor Bugbot has reviewed your changes and found 1 potential issue.
Bugbot Autofix prepared a fix for the issue found in the latest run.
- ✅ Fixed: CVE fix incomplete for other affected HTTP exporters
- Updated
otlpmetrichttpto v1.43.0 andotlploghttpto v0.19.0 ingo.mod(with matchinggo.sumentries) so all affected OTLP HTTP exporters are on patched versions.
- Updated
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Preview (e8956ec775)
diff --git a/go.mod b/go.mod
--- a/go.mod
+++ b/go.mod
@@ -214,9 +214,9 @@
go.opentelemetry.io/contrib/samplers/jaegerremote v0.36.0 // indirect
go.opentelemetry.io/otel/exporters/jaeger v1.17.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.18.0 // indirect
- go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0 // indirect
+ go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.19.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0 // indirect
- go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0 // indirect
+ go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.43.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.43.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.43.0 // indirect
diff --git a/go.sum b/go.sum
--- a/go.sum
+++ b/go.sum
@@ -1178,10 +1178,14 @@
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.18.0/go.mod h1:PFx9NgpNUKXdf7J4Q3agRxMs3Y07QhTCVipKmLsMKnU=
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0 h1:icqq3Z34UrEFk2u+HMhTtRsvo7Ues+eiJVjaJt62njs=
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0/go.mod h1:W2m8P+d5Wn5kipj4/xmbt9uMqezEKfBjzVJadfABSBE=
+go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.19.0 h1:HIBTQ3VO5aupLKjC90JgMqpezVXwFuq6Ryjn0/izoag=
+go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.19.0/go.mod h1:ji9vId85hMxqfvICA0Jt8JqEdrXaAkcpkI9HPXya0ro=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0 h1:MdKucPl/HbzckWWEisiNqMPhRrAOQX8r4jTuGr636gk=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0/go.mod h1:RolT8tWtfHcjajEH5wFIZ4Dgh5jpPdFXYV9pTAk/qjc=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0 h1:H7O6RlGOMTizyl3R08Kn5pdM06bnH8oscSj7o11tmLA=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0/go.mod h1:mBFWu/WOVDkWWsR7Tx7h6EpQB8wsv7P0Yrh0Pb7othc=
+go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.43.0 h1:w1K+pCJoPpQifuVpsKamUdn9U0zM3xUziVOqsGksUrY=
+go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.43.0/go.mod h1:HBy4BjzgVE8139ieRI75oXm3EcDN+6GhD88JT1Kjvxg=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.43.0 h1:88Y4s2C8oTui1LGM6bTWkw0ICGcOLCAI5l6zsD1j20k=
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.43.0/go.mod h1:Vl1/iaggsuRlrHf/hfPJPvVag77kKyvrLeD10kpMl+A=
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0 h1:zWWrB1U6nqhS/k6zYB74CjRpuiitRtLLi68VcgmOEto=You can send follow-ups to the cloud agent here.
Reviewed by Cursor Bugbot for commit eb15027. Configure here.
| go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0 // indirect | ||
| go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0 // indirect | ||
| go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0 // indirect | ||
| go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.43.0 // indirect |
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CVE fix incomplete for other affected HTTP exporters
Medium Severity
The PR description explicitly identifies CVE-2026-39882 as affecting three HTTP exporters: otlptracehttp, otlpmetrichttp, and otlploghttp. However, only otlptracehttp is bumped to the fixed v1.43.0. The otlpmetrichttp remains at vulnerable v1.42.0 and otlploghttp remains at vulnerable v0.18.0. Both still contain the unbounded io.Copy of HTTP response bodies that enables memory exhaustion. If these indirect dependencies are reachable through autoexport or other transitive paths, the vulnerability persists for metric and log export.
Additional Locations (1)
Reviewed by Cursor Bugbot for commit eb15027. Configure here.
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This PR contains the following updates:
v1.42.0→v1.43.0Warning
Some dependencies could not be looked up. Check the warning logs for more information.
GitHub Vulnerability Alerts
CVE-2026-39882
overview:
this report shows that the otlp HTTP exporters (traces/metrics/logs) read the full HTTP response body into an in-memory
bytes.Bufferwithout 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).
severity
HIGH
not claiming: this is a remote dos against every default deployment.
claiming: if the exporter sends traces to an untrusted collector endpoint (or over a network segment where mitm is realistic), that endpoint can crash the process via a large response body.
callsite (pinned):
permalinks (pinned):
root cause:
each exporter client reads
resp.Bodyusingio.Copy(&respData, resp.Body)into abytes.Bufferon both success and error paths, with no upper bound.impact:
a malicious collector can force large transient heap allocations during export (peak memory scales with attacker-chosen response size) and can potentially crash the instrumented process (oom).
affected component:
repro (local-only):
unzip poc.zip -d poc cd poc make canonical resp_bytes=33554432 chunk_delay_ms=0expected output contains:
control (same env, patched target):
unzip poc.zip -d poc cd poc make control resp_bytes=33554432 chunk_delay_ms=0expected control output contains:
attachments: poc.zip (attached)
PR_DESCRIPTION.md
attack_scenario.md
poc.zip
Fixed in: https://github.com/open-telemetry/opentelemetry-go/pull/8108
opentelemetry-go: OTLP HTTP exporters read unbounded HTTP response bodies
CVE-2026-39882 / GHSA-w8rr-5gcm-pp58
More information
Details
overview:
this report shows that the otlp HTTP exporters (traces/metrics/logs) read the full HTTP response body into an in-memory
bytes.Bufferwithout 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).
severity
HIGH
not claiming: this is a remote dos against every default deployment.
claiming: if the exporter sends traces to an untrusted collector endpoint (or over a network segment where mitm is realistic), that endpoint can crash the process via a large response body.
callsite (pinned):
permalinks (pinned):
root cause:
each exporter client reads
resp.Bodyusingio.Copy(&respData, resp.Body)into abytes.Bufferon both success and error paths, with no upper bound.impact:
a malicious collector can force large transient heap allocations during export (peak memory scales with attacker-chosen response size) and can potentially crash the instrumented process (oom).
affected component:
repro (local-only):
unzip poc.zip -d poc cd poc make canonical resp_bytes=33554432 chunk_delay_ms=0expected output contains:
control (same env, patched target):
unzip poc.zip -d poc cd poc make control resp_bytes=33554432 chunk_delay_ms=0expected control output contains:
attachments: poc.zip (attached)
PR_DESCRIPTION.md
attack_scenario.md
poc.zip
Fixed in: https://github.com/open-telemetry/opentelemetry-go/pull/8108
Severity
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).
Release Notes
open-telemetry/opentelemetry-go (go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp)
v1.43.0: /v0.65.0/v0.19.0Compare Source
Added
IsRandomandWithRandomonTraceFlags, andIsRandomonSpanContextingo.opentelemetry.io/otel/tracefor W3C Trace Context Level 2 Random Trace ID Flag support. (#8012)
WithServiceingo.opentelemetry.io/otel/sdk/resource. (#7642)DefaultWithContextandEnvironmentWithContextingo.opentelemetry.io/otel/sdk/resourceto support plumbingcontext.Contextthrough default and environment detectors. (#8051)attribute.EMPTY) ingo.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc. (#8038)attribute.EMPTY) ingo.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc. (#8038)attribute.EMPTY) ingo.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. (#8038)attribute.EMPTY) ingo.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp. (#8038)attribute.EMPTY) ingo.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#8038)attribute.EMPTY) ingo.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#8038)attribute.EMPTY) ingo.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest. (#8038)go.opentelemetry.io/otel/sdk/metric.Set
OTEL_GO_X_PER_SERIES_START_TIMESTAMPS=trueto enable. (#8060)WithCardinalityLimitSelectorfor metric reader for configuring cardinality limits specific to the instrument kind. (#7855)Changed
EMPTYType ingo.opentelemetry.io/otel/attributeto reflect that an empty value is now a valid value, withINVALIDremaining as a deprecated alias ofEMPTY. (#8038)go.opentelemetry.io/otel/attributeto optimize short slice values with fixed-size fast paths. (#8039)go.opentelemetry.io/otel/sdk/traceby returning early if self-observability is not enabled. (#8067)go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest. (#8073)Deprecated
INVALIDingo.opentelemetry.io/otel/attribute. UseEMPTYinstead. (#8038)Fixed
TraceIdRatioBaseddescription. This is a breaking behavioral change, but it is necessary tomake the implementation spec-compliant. (#8027)
go.opentelemetry.io/otel/sdk/metricwhere the lastvalue aggregation could collect the value 0 even when no zero-value measurements were recorded. (#8056)go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttpto mitigate excessive memory usage caused by a misconfigured or malicious server.Responses exceeding the limit are treated as non-retryable errors. (#8108)
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttpto mitigate excessive memory usage caused by a misconfigured or malicious server.Responses exceeding the limit are treated as non-retryable errors. (#8108)
go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttpto mitigate excessive memory usage caused by a misconfigured or malicious server.Responses exceeding the limit are treated as non-retryable errors. (#8108)
WithHostIDdetector ingo.opentelemetry.io/otel/sdk/resourceto use full path forkenvcommand on BSD. (#8113)request.GetBodyingo.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttpto correctly handle HTTP2 GOAWAY frame. (#8096)What's Changed
190d7d4by @renovate[bot] in #8013a57be14by @renovate[bot] in #80318895462by @renovate[bot] in #80366e66a94by @renovate[bot] in #804384a4fc4by @renovate[bot] in #8048b7b2c7bby @renovate[bot] in #8044befce8dby @renovate[bot] in #8053c2dfcecby @renovate[bot] in #8055dec52c4by @renovate[bot] in #8063744bfb5by @renovate[bot] in #8064internal/observpackage to stdoutlog by @yumosx in #7735de6f1ccby @renovate[bot] in #8082d00831aby @renovate[bot] in #8078b6b0c46by @renovate[bot] in #8076d5a96adby @renovate[bot] in #81129d38bb4by @renovate[bot] in #8117c99c5cfby @renovate[bot] in #8122New Contributors
Full Changelog: open-telemetry/opentelemetry-go@v1.42.0...v1.43.0
Configuration
📅 Schedule: Branch creation - "" (UTC), 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.
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Note
Medium Risk
Mostly a vendored dependency upgrade, but it changes runtime telemetry behavior (OTLP HTTP response handling, attribute semantics, metric aggregation options) which could impact observability or resource usage in production.
Overview
Updates vendored OpenTelemetry Go to
v1.43.0(plus related deps likegoogle.golang.org/grpc v1.80.0, updatedgenproto, andgonum), refreshinggo.mod/go.sumand vendor code.The key functional fix is in the OTLP HTTP trace exporter (
otlptracehttp): caps HTTP response bodies to 4MiB when reading success/error responses (mitigating memory-exhaustion CVE), and switches request creation tohttp.NewRequestWithContext.This update also brings upstream SDK/API changes: attributes treat empty values as valid (
EMPTYwithINVALIDdeprecated), adds per-kind metric cardinality limit selection (WithCardinalityLimitSelector), introduces an experimental per-series start timestamp feature flag for cumulative metrics, and includes minor resource/trace updates (e.g.,WithService,DefaultWithContext,TraceFlagsrandom-bit helpers).Reviewed by Cursor Bugbot for commit eb15027. Bugbot is set up for automated code reviews on this repo. Configure here.