Denial of Service Flaw in Transport Layer Security Implementation by Digital Bazaar
CVE-2026-33891

7.5HIGH

Key Information:

Vendor

Digitalbazaar

Status
Forge
Vendor
CVE Published:
27 March 2026

What is CVE-2026-33891?

The node-forge library, a JavaScript implementation of Transport Layer Security, is susceptible to a Denial of Service vulnerability due to an infinite loop in the BigInteger.modInverse() function. This issue occurs when modInverse() is invoked with zero as an argument, resulting in an indefinite hang and the consumption of 100% CPU resources. Users should upgrade to version 1.4.0 or later to mitigate this vulnerability, which has been addressed in recent patches.

Affected Version(s)

forge < 1.4.0

References

https://github.com/digitalbazaar/forge/security/advisorie...
x_refsource_CONFIRM
https://github.com/digitalbazaar/forge/commit/9bb8d67b99d...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.