Critical severity · published Nov 6, 2020
CVE-2020-26892
The JWT library in NATS nats-server before 2.1.9 has Incorrect Access Control because of how expired credentials are handled
9.8
CVSS
2.3%
EPSS
No
On KEV
Description
The JWT library in NATS nats-server before 2.1.9 has Incorrect Access Control because of how expired credentials are handled.
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)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
33 · source: NVD
NA
Nats-server · Linuxfoundation
before 2.1.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26892
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-26892
Patch
https://github.com/nats-io/nats-server/commits/master
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT67XCLIIBYRT762SVFBYFFTQFVSM3SI/
Mailing List
https://www.openwall.com/lists/oss-security/2020/11/02/2
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