High 7.5Published Mar 27, 2026

CVE-2026-33894Forge has signature forgery in RSA-PKCS due to ASN.1 extra field

Updated under an hour ago (Oct 26, 2026, 7:23 PM ET)

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It affects digitalbazaar forge and 13 other products. Add what you run to find out whether that includes you.

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Every CVE for digitalbazaar forge

Exploited in the last 30 days

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for low public exponent keys (e=3). Attackers can forge signatures by stuffing “garbage” bytes within the ASN structure in order to construct a signature that passes verification, enabling Bleichenbacher style forgery. This issue is similar to CVE-2022-24771, but adds bytes in an addition field within the ASN structure, rather than outside of it. Additionally, forge does not validate that signatures include a minimum of 8 bytes of padding as defined by the specification, providing attackers additional space to construct Bleichenbacher forgeries. Version 1.4.0 patches the issue.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE): CWE-347, CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Sep 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

digitalbazaar forge digitalbazaar:forge (from the name)	before 1.4.0	CNA record
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 redhat:ansible_automation_platform	from 0:2.5.20260422-3.el8ap not affected	CISA ADP
Red Hat Cluster Observability Operator 1.5.0 redhat:cluster_observability_operator	from 1782839279 not affected	CISA ADP
Red Hat Red Hat Developer Hub 1.8 redhat:rhdh	from 1776784286 not affected	CISA ADP
Red Hat Red Hat Quay 3.10 redhat:quay	from 1779822261 not affected	CISA ADP
Red Hat Cryostat 4 redhat:cryostat	4	CISA ADP
Red Hat Logging Subsystem for Red Hat OpenShift redhat:logging	5	CISA ADP
Red Hat Red Hat build of Apache Camel - HawtIO 4 redhat:apache_camel_hawtio	4	CISA ADP
Red Hat Red Hat build of Apicurio Registry 2 redhat:service_registry	2	CISA ADP
Red Hat Red Hat Build of Podman Desktop redhat:podman_desktop	1	CISA ADP
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References

References

https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp	x-refsource-confirm, vendor-advisory
https://datatracker.ietf.org/doc/html/rfc2313#section-8	x-refsource-misc, third-party-advisory
https://mailarchive.ietf.org/arch/msg/openpgp/5rnE9ZRN1AokBVj3VqblGlP63QE	x-refsource-misc, third-party-advisory
https://www.rfc-editor.org/rfc/rfc8017.html	x-refsource-misc, third-party-advisory
https://access.redhat.com/errata/RHSA-2026:13826
https://access.redhat.com/errata/RHSA-2026:19375
https://access.redhat.com/errata/RHSA-2026:21017
https://access.redhat.com/errata/RHSA-2026:22465
https://access.redhat.com/errata/RHSA-2026:22629
https://access.redhat.com/errata/RHSA-2026:22840
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.