TI-2026-73517 Aliases CVE-2026-85473

Out-of-range JWT timestamp claims terminate threads in Auth0 java-jwt

LOW 30CWE-20Published 2026-10-13 · Updated 2026-10-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

Auth0 java-jwt versions from 4.0.0 before 4.6.2 are affected. A JWT whose timestamp claim (exp, nbf, iat) holds an out-of-range value can cause the library to terminate a thread during token parsing (CWE-20). An unauthenticated remote attacker can trigger this by sending such tokens, because parsing happens before signature verification, and repeated requests may degrade availability of the affected service.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00318 24th percentileScored 2026-11-07

Fix Partial java-jwt (Auth0): 4.6.2Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
auth0	java-jwt	4.0.0 to before 4.6.2	4.6.2	Patch available	CNA

java-jwt Vendorauth0 Affected 4.0.0 to before 4.6.2 Fixed in 4.6.2 Patch available CNA

Remediation

Upgrade Auth0 java-jwt to version 4.6.2. Red Hat Fuse 7 has no fix planned, and Red Hat build of Apache Camel 4 for Quarkus 3 has no fix available.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Fix · CNA java-jwt (Auth0) Fixed in 4.6.2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Fuse 7	Affected	No fix planned: Out of support scope
Red Hat build of Apache Camel 4 for Quarkus 3	Affected	No fix yet

Timeline

2026-10-13 Threatist record created from CVE-2026-85473
2026-10-16 CISA SSVC decision points changed
2026-10-30 Affected versions changed · Red Hat
2026-10-30 CVSS score added · Red Hat

References

Other 2

TI-2015-07615 Improper input validation in HackerOne jsonwebtoken node module CVSS 3.0CRITICAL 9.8
TI-2025-29805 Brute Force Authentication Tags of CookieStore Sessions in Auth0-PHP SDK CVSS 3.1CRITICAL 9.1
TI-2025-31089 Auth0-PHP SDK Deserialization of Untrusted Data vulnerability CVSS 4.0CRITICAL 9.3
TI-2020-06427 An issue was discovered in the Login by Auth0 plugin before 4.0.0 for WordPress. CVSS 3.1CRITICAL 9.8
TI-2018-05020 The Auth0 authentication service before 2017-10-15 allows privilege escalation because… CVSS 3.0CRITICAL 9.8
TI-2019-05387 Auth0 Auth0-WCF-Service-JWT before 1.0.4 leaks the expected JWT signature in an error… CVSS 3.0CRITICAL 9.8

See all 57 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences