Medium severity · published Oct 13, 2026
CVE-2026-85473
Out-of-Range Timestamp Claim Handling in auth0/java-jwt
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
The auth0/java-jwt library may terminate a thread if it receives a JWT with a timestamp claim (exp, nbf, iat) containing an out-of-range value. The condition occurs during token parsing, prior to signature verification. Repeated requests of this nature may lead to degraded availability of the affected service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JA
java-jwt · Auth0
4.0.0 before 4.6.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85473
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85473
trust.okta.com
https://trust.okta.com/security-advisories/out-of-range-timestamp-claim-handling-in-auth0-java-jwt-cve-2026-85473
github.com
https://github.com/auth0/java-jwt/security/advisories/GHSA-cg7w-5cc2-f2xm
