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CVE-2026-33894

nvd nist
Published: Mar 27, 2026Modified: Jul 20, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploitability: 3.9 / Impact: 3.6
Source: security-advisories@github.com (Secondary)

Description

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.

Affected (1)

Products: Digitalbazaar: Forge
Digitalbazaar
1 product
Forge
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Forge
Before 1.4.0

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-347
Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.

References (145)

Source: security-advisories@github.com
Third Party Advisory
Source: security-advisories@github.com
Vendor Advisory
Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
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Source: security-advisories@github.com
Third Party Advisory
Source: security-advisories@github.com
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
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Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

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