High severity · published Mar 16, 2021
CVE-2021-3127
NATS Server 2.x before 2.2.0 and JWT library before 2.0.1 have Incorrect Access Control because Import Token bindings are mishandled
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
NATS Server 2.x before 2.2.0 and JWT library before 2.0.1 have Incorrect Access Control because Import Token bindings are mishandled.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JL
Jwt Library · Nats
before 2.0.1 · source: NVD
NA
Nats-server · Linuxfoundation
2.0.0 before 2.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3127
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3127
Exploit
https://advisories.nats.io/CVE/CVE-2021-3127.txt
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