CVE-2026-33896
Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)
Description
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, `pki.verifyCertificateChain()` does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the `basicConstraints` and `keyUsage` extensions. This allows any leaf certificate (without these extensions) to act as a CA and sign other certificates, which node-forge will accept as valid. Version 1.4.0 patches the issue.
INFO
Published Date :
March 27, 2026, 9:17 p.m.
Last Modified :
July 2, 2026, 12:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | HIGH | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
Solution
- Update node-forge to version 1.4.0 or later.
- Verify certificate chain validation logic.
- Apply patches if updating is not possible.
Public PoC/Exploit Available at Github
CVE-2026-33896 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33896.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33896 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33896
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Local-first real-time vulnerability detection with Gemma 4.
ai-safety ai-security gemma gemma-4 hackathon interpretability linear-probe ollama security vulnerability-detection
Python Shell HTML Jinja Jupyter Notebook TypeScript Makefile CSS Dockerfile C
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33896 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33896 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jul. 02, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:34342 Changed Affected [{'cpes': ['cpe:/a:redhat:ansible_automation_platform:2.5::el8', 'cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8', 'cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2.5 for RHEL 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_automation_platform:2.5::el9', 'cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9', 'cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2.5 for RHEL 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1.8::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub 1.8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1.9::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub 1.9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:logging:5'], 'vendor': 'Red Hat', 'product': 'Logging Subsystem for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:service_registry:2'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apicurio Registry 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:jboss_data_grid:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Data Grid 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:ansible_automation_platform:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:apache_camel_hawtio:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel - HawtIO 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_bpms_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Process Automation 7', 'defaultStatus': 'unaffected'}] [{'cpes': ['cpe:/a:redhat:ansible_automation_platform:2.5::el8', 'cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8', 'cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2.5 for RHEL 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_automation_platform:2.5::el9', 'cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9', 'cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2.5 for RHEL 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cluster_observability_operator:1.5::el9'], 'vendor': 'Red Hat', 'product': 'Cluster Observability Operator 1.5.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1.8::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub 1.8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1.9::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub 1.9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:logging:5'], 'vendor': 'Red Hat', 'product': 'Logging Subsystem for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:service_registry:2'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apicurio Registry 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:jboss_data_grid:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Data Grid 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:ansible_automation_platform:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:apache_camel_hawtio:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel - HawtIO 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_bpms_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Process Automation 7', 'defaultStatus': 'unaffected'}] -
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jun. 30, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/a:redhat:ansible_automation_platform:2.5::el8', 'cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8', 'cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2.5 for RHEL 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ansible_automation_platform:2.5::el9', 'cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9', 'cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2.5 for RHEL 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1.8::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub 1.8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhdh:1.9::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Developer Hub 1.9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:logging:5'], 'vendor': 'Red Hat', 'product': 'Logging Subsystem for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:service_registry:2'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apicurio Registry 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:podman_desktop:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Podman Desktop', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:jboss_data_grid:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Data Grid 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:ansible_automation_platform:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Ansible Automation Platform 2', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:apache_camel_hawtio:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel - HawtIO 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_bpms_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Process Automation 7', 'defaultStatus': 'unaffected'}] Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-295 Added Reference https://access.redhat.com/errata/RHSA-2026:13826 Added Reference https://access.redhat.com/errata/RHSA-2026:24761 Added Reference https://access.redhat.com/errata/RHSA-2026:9742 Added Reference https://access.redhat.com/security/cve/CVE-2026-33896 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2452458 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33896.json -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'digitalbazaar', 'product': 'forge', 'versions': [{'status': 'affected', 'version': '< 1.4.0'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-33896', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-03-30T18:53:46.442762Z'} -
Initial Analysis by [email protected]
Apr. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Added CPE Configuration OR *cpe:2.3:a:digitalbazaar:forge:*:*:*:*:*:node.js:*:* versions up to (including) 1.3.3 Added Reference Type GitHub, Inc.: https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25 Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25 Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 30, 2026
Action Type Old Value New Value Added Reference https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25 -
New CVE Received by [email protected]
Mar. 27, 2026
Action Type Old Value New Value Added Description Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, `pki.verifyCertificateChain()` does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the `basicConstraints` and `keyUsage` extensions. This allows any leaf certificate (without these extensions) to act as a CA and sign other certificates, which node-forge will accept as valid. Version 1.4.0 patches the issue. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-295 Added Reference https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90 Added Reference https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25