The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.
    (CVE-2019-18848)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.
    (CVE-2019-18848)

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2025:0004-1 advisory.

    - New upstream release 1.16.6, see bundled CHANGELOG.md

    - Remove padding oracle by @btoews in https://github.com/nov/json-jwt/pull/109
    - Fixes CVE-2023-51774 boo#1220727

    - updated to version 1.11.0
      - no changelog found
      - Fixes CVE-2019-18848 boo#1156649

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.

Therefore, there was a need to explicitly specify the number of elements when splitting a JWE string.

For Debian 9 stretch, this problem has been fixed in version 1.6.2-1+deb9u2.

We recommend that you upgrade your ruby-json-jwt packages.

For the detailed security status of ruby-json-jwt please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/ruby-json-jwt

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
256920	Linux Distros Unpatched Vulnerability : CVE-2019-18848	Nessus	Misc.	high
422551	SCA: security update for json-jwt (GHSA-cff7-6h4q-q5pj)	Tenable Cloud Security	SCA Checks	high
422551	SCA: security update for json-jwt (GHSA-cff7-6h4q-q5pj)	Tenable Self-Hosted Container Security	SCA Checks	high
213542	openSUSE 15 Security Update : rubygem-json-jwt (openSUSE-SU-2025:0004-1)	Nessus	SuSE Local Security Checks	high
141132	Debian DLA-2390-1 : ruby-json-jwt security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2019-18848

high

Tenable Plugins

high

high

high

high

high