Critical severity · published Nov 9, 2021
CVE-2021-43185
JetBrains YouTrack before 2021.3.23639 is vulnerable to Host header injection
9.8
CVSS
2%
EPSS
No
On KEV
Description
JetBrains YouTrack before 2021.3.23639 is vulnerable to Host header injection.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YO
Youtrack · Jetbrains
before 2021.3.23639 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43185
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43185
Vendor Advisory
https://blog.jetbrains.com/blog/2021/11/08/jetbrains-security-bulletin-q3-2021/
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