CVE-2024-54158Network attack vector

Spoofing via missing Punycode encoding

Published Dec 4, 2024 · Updated Dec 4, 2024

Spoofing in JetBrains YouTrack before 2024.3.52635 allows remote authenticated users to misrepresent internationalized domain names. The affected handling path presents a domain without converting its Unicode form to Punycode, allowing a deceptive name to appear legitimate. Exploitation requires low-privileged access and user interaction and is limited to integrity impact through misleading displayed identity.

CVSS severity3.5
Low
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Spoofing in JetBrains YouTrack before 2024.3.52635 allows remote authenticated users to misrepresent internationalized domain names. The affected handling path presents a domain without converting its Unicode form to Punycode, allowing a deceptive name to appear legitimate. Exploitation requires low-privileged access and user interaction and is limited to integrity impact through misleading displayed identity.

The record

CVE
CVE-2024-54158
Published
Dec 4, 2024
Updated
Dec 4, 2024
Vendor
JetBrains
Product
YouTrack
Classifications
CWE-173, CWE-290, T1036
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 4, 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 <2024.3.52635

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JetBrains · YouTrackversion=0 <2024.3.52635

Published CVSS scores

3.5JetBrains s.r.o.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
5.3NIST NVDCVSS: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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-173Improper Handling of Alternate Encoding
CWE-290Authentication Bypass by Spoofing
T1036Masquerading

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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