CVE-2024-6299Network attack vector

Remote server impersonation via expired signing keys

Published Jun 25, 2024 · Updated Aug 29, 2024

Cryptographic key validation in Conduit before 0.8.0 allows remote attackers to impersonate a remote server using an expired signing key. The federation signature validator accepts signatures from expired server keys and PDUs timestamped after the key's expiry date. Exploitation requires possession of a compromised expired key and permits forged federation requests and events with bounded confidentiality and integrity effects.

CVSS severity4.8
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cryptographic key validation in Conduit before 0.8.0 allows remote attackers to impersonate a remote server using an expired signing key. The federation signature validator accepts signatures from expired server keys and PDUs timestamped after the key's expiry date. Exploitation requires possession of a compromised expired key and permits forged federation requests and events with bounded confidentiality and integrity effects.

The record

CVE
CVE-2024-6299
Published
Jun 25, 2024
Updated
Aug 29, 2024
Vendor
The Conduit Contributors
Product
Conduit
Classifications
CWE-324
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

3.7NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
4.8GitLab Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-324Use of a Key Past its Expiration Date

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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