CVE-2024-28110Network attack vector

Credential disclosure via process-wide transport mutation

Published Mar 6, 2024 · Updated Apr 16, 2025

Credential exposure in CloudEvents Go SDK before 2.15.2 allows remote attackers to obtain authorization tokens via outbound HTTP requests. The protocol/http New function aliases http.DefaultClient and then overwrites its Transport when WithRoundTripper supplies an authenticated RoundTripper, applying that transport process-wide. Reachability requires an application to use that option and later send another default-client request to an attacker-controlled endpoint, exposing any attached token within its granted scope.

CVSS severity7.5
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in CloudEvents Go SDK before 2.15.2 allows remote attackers to obtain authorization tokens via outbound HTTP requests. The protocol/http New function aliases http.DefaultClient and then overwrites its Transport when WithRoundTripper supplies an authenticated RoundTripper, applying that transport process-wide. Reachability requires an application to use that option and later send another default-client request to an attacker-controlled endpoint, exposing any attached token within its granted scope.

The record

CVE
CVE-2024-28110
Published
Mar 6, 2024
Updated
Apr 16, 2025
Vendor
CloudEvents
Product
CloudEvents Go SDK
Classifications
CWE-522, T1528
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record 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 <2.15.2
  2. Affected versionversion=< 2.15.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CloudEvents · CloudEvents Go SDKversion=0 <2.15.2; version=< 2.15.2

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1528Steal Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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