Echo: pyjwt: security update to 2.15.0

high Tenable Self-Hosted Container Security Plugin ID 471080

Description

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

- PyJWT is a Python implementation of JSON Web Token standards. From 2.0.0a1 until 2.15.0, PyJWT
PyJWKClient.get_signing_key_from_jwt is affected because payload parser catches ValueError but not
RecursionError. This occurs when an attacker-controlled recursively nested payload reaches json.loads. As
a result, documented PyJWT exception handling does not contain the failure. Consequently, an
unauthenticated request can raise an exception that may produce an HTTP 500 response. The advisory-defined
affected implementation also includes jwt/api_jwt.py, verify_signature=False. This issue is fixed in
version 2.15.0. (CVE-2026-101918)

Solution

Update the pyjwt library and its related packages to version 2.15.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-101918

Plugin Details

Severity: High

ID: 471080

Version: Revision 1.2

Type: Local

Published: 10/3/2026

Updated: 10/13/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.16

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-101918

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/29/2026

Vulnerability Publication Date: 9/28/2026

Reference Information

CVE: CVE-2026-101918