ExploitedPHP2Shell is now on CISA KEV

critical vulnerability

joserfc has Possible Uncontrolled Resource Consumption Vulnerability Triggered by Logging Arbitrarily Large JWT Token Payloads

Published Nov 18, 2025 · updated Oct 27, 2026

What to do

  1. Upgrade to a fixed version: joserfc 1.3.5, joserfc 1.4.2.
  2. Redeploy and restart long-running processes so they load the fixed code.

Affected packages

joserfc

>= 1.3.3, < 1.3.5
1.3.5

Check your project: pip show joserfc

joserfc

>= 1.4.0, < 1.4.2
1.4.2

Check your project: pip show joserfc

Sources

← All critical vulnerabilities