CVE-2024-45043Public exploitNetwork attack vector

Unauthenticated metric injection via missing-key acceptance

Published Aug 28, 2024 · Updated Aug 28, 2024

Authentication bypass in OpenTelemetry Collector Contrib 0.49.0 through 0.107.0 allows remote attackers to write metrics without a key. The awsfirehosereceiver validate method accepts a request whenever the X-Amz-Firehose-Access-Key header is empty, even when an access key is configured. Exposure requires the alpha receiver to be enabled with an access key; injected metrics can conceal malicious activity but cannot disclose collector data.

CVSS severity5.3
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in OpenTelemetry Collector Contrib 0.49.0 through 0.107.0 allows remote attackers to write metrics without a key. The awsfirehosereceiver validate method accepts a request whenever the X-Amz-Firehose-Access-Key header is empty, even when an access key is configured. Exposure requires the alpha receiver to be enabled with an access key; injected metrics can conceal malicious activity but cannot disclose collector data.

The record

CVE
CVE-2024-45043
Published
Aug 28, 2024
Updated
Aug 28, 2024
Vendor
OpenTelemetry
Product
OpenTelemetry Collector Contrib
Classifications
CWE-863, CWE-200, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>= 0.49.0, < 0.108.0
  2. Affected versionversion=0.49.0 <0.108.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenTelemetry · OpenTelemetry Collector Contribversion=>= 0.49.0, < 0.108.0; version=0.49.0 <0.108.0

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1565.001Stored Data Manipulation

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo