CVE-2026-40182Disclosure(opentelemetry / opentelemetry)

LOWCVSS 5.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry to a back-end/collector over gRPC or HTTP using OpenTelemetry Protocol format (OTLP), if the request results in a unsuccessful request (i.e. HTTP 4xx or 5xx), the response is read into memory with no upper-bound on the number of bytes consumed. This could cause memory exhaustion in the consuming application if the configured back-end/collector endpoint is attacker-controlled (or a network attacker can MitM the connection) and an extremely large body is returned by the response. This vulnerability is fixed in 1.15.2.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-789

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • opentelemetry

Threat summary

  • 4 mentions across 4 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 3 classified signals
  • General: 1 classified signal
  • Peaked 3d ago at 1 mentions (2026-04-23); latest day: 1
  • 4 total mentions across 4 days

Affected systems

Products
opentelemetry

Deep dive

Activity timeline4 mentions / 4d
00111Mentions · 2026-04-23: 1Mentions · 2026-04-24: 1Mentions · 2026-04-28: 1Mentions · 2026-04-29: 1Technical Details · 2026-04-23: 1Technical Details · 2026-04-24: 1Technical Details · 2026-04-28: 1Technical Details · 2026-04-29: 104-2304-2404-2804-29
Signal classification2 categories
Disclosure
375.0%
General
125.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-04-231
Disclosure1
2026-04-241
Disclosure1
2026-04-281
Disclosure1
2026-04-291
General1
Full discourse4 posts
  • DailyCVE@dailycve
    General

    🟠 OpenTelemetry-dotnet OTLP Exporter, Unbounded Memory Allocation, #CVE-2026-40182 (Medium) https://dailycve.com/opentelemetry-dotnet-otlp-exporter-unbounded-memory-allocation-cve-2026-40182-medium/

    Post summary

    The post highlights CVE-2026-40182 as an unbounded memory allocation issue in OpenTelemetry-dotnet OTLP Exporter with medium severity, without further details on PoC, exploitation, or remediation.

    0000038
    190 followersView on X
  • cvereports@_cvereports
    Disclosure

    CVE-2026-40182: CVE-2026-40182: Unbounded Memory Exhaustion Denial of Service in OpenTelemetry .NET OTLP Exporter The opentelemetry-dotnet framework versions 1.13.1 through 1.15.1 contain an uncontrolled resource consumption vulnerability in the OpenT... https://cvereports.com/reports/CVE-2026-40182

    Post summary

    The brief report highlights a memory exhaustion denial‑of‑service vulnerability in OpenTelemetry .NET OTLP Exporter versions 1.13.1 to 1.15.1, without providing PoC, exploitation, or patch details.

    0000030
    36 followersView on X
  • DailyCVE@dailycve
    Disclosure

    🟠 OpenTelemetry NET OTLP Exporter, Unbounded Memory Allocation, #CVE-2026-40182 (Medium) https://dailycve.com/opentelemetry-net-otlp-exporter-unbounded-memory-allocation-cve-2026-40182-medium/

    Post summary

    This snippet announces CVE-2026-40182, a medium‑severity unbounded memory allocation vulnerability in the OpenTelemetry NET OTLP Exporter, with no evidence of exploitation, PoC, or patch details provided.

    0000044
    183 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-40182 OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry to a back-end/collector over gRPC or HTTP using OpenTelem… https://www.cve.org/CVERecord?id=CVE-2026-40182

    Post summary

    The described CVE addresses a flaw in OpenTelemetry .NET versions 1.13.1 through before 1.15.2 when exporting telemetry over gRPC or HTTP, though no PoC, exploit, or patch details are provided.

    0000098
    57.2K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopentelemetryopentelemetry-.net-

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