CVE-2024-36129Public exploitNetwork attack vector

Service crash via unbounded request decompression

Published Jun 5, 2024 · Updated Aug 2, 2024

Denial of service in OpenTelemetry Collector before 0.102.1 allows remote attackers to crash the service with compressed HTTP or gRPC requests. The HTTP path limits only compressed body size before decoding, while gRPC zstd decompression ignores gRPC limits, allowing extreme memory growth. Reachability requires an enabled receiver endpoint; HTTP authentication blocks unauthenticated requests, but gRPC decompresses before authentication, and a crash stops telemetry collection.

CVSS severity8.2
High
EPSS probability1.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in OpenTelemetry Collector before 0.102.1 allows remote attackers to crash the service with compressed HTTP or gRPC requests. The HTTP path limits only compressed body size before decoding, while gRPC zstd decompression ignores gRPC limits, allowing extreme memory growth. Reachability requires an enabled receiver endpoint; HTTP authentication blocks unauthenticated requests, but gRPC decompresses before authentication, and a crash stops telemetry collection.

The record

CVE
CVE-2024-36129
Published
Jun 5, 2024
Updated
Aug 2, 2024
Vendor
OpenTelemetry
Product
OpenTelemetry
Classifications
CWE-119, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.102.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenTelemetry · OpenTelemetryversion=0 <0.102.1
OpenTelemetry · OpenTelemetry Collectorversion=< 0.102.1

Published CVSS scores

8.2GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Application or System Exploitation Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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