CVE-2024-39906Public exploitNetwork attack vector

Command execution via pipe-prefixed IndieAuth client ID

Published Jul 19, 2024 · Updated Aug 2, 2024

Command injection in Haven before commit c52f07c allows remote attackers to execute commands by sending a crafted IndieAuth link to an administrator. IndieAuthClient.initialize passes the untrusted client_id directly to URI.open; a leading pipe causes Ruby to execute the remaining value through a shell. Exploitation requires an unauthenticated attacker to induce a logged-in administrator to open the URL, after which commands run with the Haven server process's privileges.

CVSS severity8.3
High
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Haven before commit c52f07c allows remote attackers to execute commands by sending a crafted IndieAuth link to an administrator. IndieAuthClient.initialize passes the untrusted client_id directly to URI.open; a leading pipe causes Ruby to execute the remaining value through a shell. Exploitation requires an unauthenticated attacker to induce a logged-in administrator to open the URL, after which commands run with the Haven server process's privileges.

The record

CVE
CVE-2024-39906
Published
Jul 19, 2024
Updated
Aug 2, 2024
Vendor
Haven
Product
Haven
Classifications
CWE-78, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 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 <c52f07c
  2. Affected versionversion=< c52f07c

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Haven · Havenversion=0 <c52f07c; version=< c52f07c

Published CVSS scores

8.3GitHub Security AdvisoryCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/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 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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1204.001Malicious Link

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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