CVE-2026-41458Network attack vector

Unauthenticated crash via concurrent DAAP logins

Published Apr 22, 2026 · Updated Apr 22, 2026

Race condition in OwnTone Server 28.4.0 through 29.0 allows remote attackers to crash the service via concurrent DAAP login requests. The DAAP handler keeps live pointers into a global session list and accesses entries without serialization, allowing concurrent cleanup to invalidate request state. No authentication or user interaction is required; flooding the /login endpoint can terminate media streaming until the process restarts.

CVSS severity8.2
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in OwnTone Server 28.4.0 through 29.0 allows remote attackers to crash the service via concurrent DAAP login requests. The DAAP handler keeps live pointers into a global session list and accesses entries without serialization, allowing concurrent cleanup to invalidate request state. No authentication or user interaction is required; flooding the /login endpoint can terminate media streaming until the process restarts.

The record

CVE
CVE-2026-41458
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
OwnTone
Product
OwnTone Server
Classifications
CWE-362, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2026Record 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=28.7.0 <29.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OwnTone · OwnTone Serverversion=28.7.0 <29.1.0

Published CVSS scores

8.2VulnCheckCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499Endpoint Denial of Service

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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