Bug 2452450 (CVE-2026-33891) - CVE-2026-33891 node-forge: node-forge: Denial of Service via infinite loop in BigInteger.modInverse()
Summary: CVE-2026-33891 node-forge: node-forge: Denial of Service via infinite loop in...
Keywords:
Status: NEW
Alias: CVE-2026-33891
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2452503 2452504 2452499 2452500 2452501 2452502
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-27 21:01 UTC by OSIDB Bzimport
Modified: 2026-06-09 11:03 UTC (History)
44 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:24761 0 None None None 2026-06-09 11:03:25 UTC
Red Hat Product Errata RHSA-2026:24762 0 None None None 2026-06-09 11:01:40 UTC

Description OSIDB Bzimport 2026-03-27 21:01:58 UTC 
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service (DoS) vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse() function (inherited from the bundled jsbn library). When modInverse() is called with a zero value as input, the internal Extended Euclidean Algorithm enters an unreachable exit condition, causing the process to hang indefinitely and consume 100% CPU. Version 1.4.0 patches the issue.
Comment 2 errata-xmlrpc 2026-06-09 11:01:37 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.6 for RHEL 9
  Red Hat Ansible Automation Platform 2.6 for RHEL 10

Via RHSA-2026:24762 https://access.redhat.com/errata/RHSA-2026:24762
Comment 3 errata-xmlrpc 2026-06-09 11:03:21 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.5 for RHEL 9
  Red Hat Ansible Automation Platform 2.5 for RHEL 8

Via RHSA-2026:24761 https://access.redhat.com/errata/RHSA-2026:24761
Note You need to log in before you can comment on or make changes to this bug.