VDB-353826 · CVE-2026-33895 · Nessus 304110

digitalbazaar forge 1.3.2 Ed25519 Signature signature verification

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in digitalbazaar forge and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Ed25519 Signature Handler. The manipulation results in signature verification. This vulnerability is identified as CVE-2026-33895. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in digitalbazaar forge. Affected is an unknown code of the component Ed25519 Signature Handler. The manipulation with an unknown input leads to a signature verification vulnerability. CWE is classifying the issue as CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. This is going to have an impact on integrity. CVE summarizes:

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order (`S >= L`). A valid signature and its `S + L` variant both verify in forge, while Node.js `crypto.verify` (OpenSSL-backed) rejects the `S + L` variant, as defined by the specification. This class of signature malleability has been exploited in practice to bypass authentication and authorization logic (see CVE-2026-25793, CVE-2022-35961). Applications relying on signature uniqueness (i.e., dedup by signature bytes, replay tracking, signed-object canonicalization checks) may be bypassed. Version 1.4.0 patches the issue.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-33895. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 304110 (Linux Distros Unpatched Vulnerability : CVE-2026-33895), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.4.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (304110) and CERT Bund (WID-SEC-2026-1407). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

IBM App Connect Enterprise
Red Hat Enterprise Linux
Fedora Linux
IBM QRadar SIEM
IBM MQ
IBM Maximo Asset Management
IBM Sterling Connect:Direct

Productinfo

Vendor

digitalbazaar

Name

forge

Version

1.3.2

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 304110
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-33895

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: forge 1.4.0

Timelineinfo

03/27/2026 Advisory disclosed
03/27/2026 +0 days VulDB entry created
07/02/2026 +96 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-33895 (🔒)
GCVE (CVE): GCVE-0-2026-33895
GCVE (VulDB): GCVE-100-353826
CERT Bund: WID-SEC-2026-1407 - IBM App Connect Enterprise Certified Container: Mehrere Schwachstellen

Entryinfo

Created: 03/27/2026 07:33
Updated: 07/02/2026 01:56
Changes: 03/27/2026 07:33 (51), 03/29/2026 00:24 (2), 05/07/2026 17:48 (7), 06/20/2026 00:09 (1), 07/02/2026 01:56 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.