UBUNTU-CVE-2026-85393

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2026-85393

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85393.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-85393

Upstream

CVE-2026-85393

Published

2026-09-04T00:00:00Z

Modified

2026-09-05T06:15:51Z

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
8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an incomplete fix for CVE-2026-33894.

References

Affected packages

Ubuntu:20.04:LTS / node-node-forge

Package

Name: node-node-forge
Purl: pkg:deb/ubuntu/node-node-forge?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.8.5~dfsg-2

0.9.1~dfsg-1

Ecosystem specific

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

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85393.json"

Ubuntu:22.04:LTS / node-node-forge