UBUNTU-CVE-2026-33894

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Source
https://ubuntu.com/security/CVE-2026-33894
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33894.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-33894
Upstream
Published
2026-03-27T21:17:00Z
Modified
2026-04-02T17:31:27Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:20.04:LTS / node-node-forge

Package

Name
node-node-forge
Purl
pkg:deb/ubuntu/node-node-forge@0.9.1~dfsg-1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.8.5~dfsg-2
0.9.1~dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.9.1~dfsg-1",
            "binary_name": "libjs-node-forge"
        },
        {
            "binary_version": "0.9.1~dfsg-1",
            "binary_name": "node-node-forge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33894.json"

Ubuntu:22.04:LTS / node-node-forge

Package

Name
node-node-forge
Purl
pkg:deb/ubuntu/node-node-forge@1.2.1~dfsg-2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.10.0~dfsg-3
1.*
1.2.1~dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.1~dfsg-2",
            "binary_name": "libjs-node-forge"
        },
        {
            "binary_version": "1.2.1~dfsg-2",
            "binary_name": "node-node-forge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33894.json"