CVE-2019-7644

Critical severity vulnerability that affects Auth0-WCF-Service-JWT

Published 11 Apr 2019Modified 17 Jun 2026CWE 209

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GHSA9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA.

Description

Auth0 Auth0-WCF-Service-JWT before 1.0.4 leaks the expected JWT signature in an error message when it cannot successfully validate the JWT signature. If this error message is presented to an attacker, they can forge an arbitrary JWT token that will be accepted by the vulnerable application.

Affected packages and fixed versions

Source	Package	Fixed in
nuget::GitHub Security Advisory NuGet	Auth0-WCF-Service-JWT, auth0-wcf-service-jwt	1.0.4

Show all 2 entries from 1 source

Source	Package	Fixed in
nuget::GitHub Security Advisory NuGet	Auth0-WCF-Service-JWT	1.0.4
nuget::GitHub Security Advisory NuGet	auth0-wcf-service-jwt	1.0.4

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.