CVE-2024-6301Network attack vector

User impersonation via unchecked federation origin

Published Jun 25, 2024 · Updated Aug 29, 2024

Origin validation error in the Conduit federation API before 0.8.0 allows remote attackers to impersonate users through malicious EDUs. The API accepts the purported user origin carried by most ephemeral data units without confirming that it belongs to the authenticated remote server. A remote Matrix server with federation access is sufficient; the bounded consequence is forged transient user activity without data disclosure or service interruption.

CVSS severity5.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Origin validation error in the Conduit federation API before 0.8.0 allows remote attackers to impersonate users through malicious EDUs. The API accepts the purported user origin carried by most ephemeral data units without confirming that it belongs to the authenticated remote server. A remote Matrix server with federation access is sufficient; the bounded consequence is forged transient user activity without data disclosure or service interruption.

The record

CVE
CVE-2024-6301
Published
Jun 25, 2024
Updated
Aug 29, 2024
Vendor
The Conduit Contributors
Product
Conduit
Classifications
CWE-346, T1199
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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 <0.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Conduit Contributors · Conduitversion=0 <0.8.0

Published CVSS scores

5.3GitLab CNACVSS: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.

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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-346Origin Validation Error
T1199Trusted Relationship

Public exploit references

No public exploit references are available in this record.

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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