In JetBrains YouTrack before 2024.3.52635 potential spoofing attack was possible via lack of Punycode encoding

published 2024-12-04 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-52322

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits: 0; none known

Patch / fix

fixed in 1

JetBrains YouTrack 2024.3.52635

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 23 mo ago (2024-12-04)

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

JetBrains YouTrack

Classification

Weakness

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

References

jetbrains.com /privacy-security/issues-fixed/
vendor-advisory

Sources

CVE List CVE-2024-54158
NVD CVE-2024-54158

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary