ETK-2026-2725Zero's internal tracking ID, independent of the CVE number.
validatedZero produced an exploit or a check.description
node-forge before 1.4.1 may accept malformed DigestInfo encodings when verifying default RSASSA-PKCS1-v1_5 signatures, including X.509 and PKCS#7 signatures. An attacker may forge a signature that is accepted as valid when the application verifies it with an RSA public key using exponent 3.
mitigation
Upgrade node-forge to 1.4.1. Until upgraded, do not use RSA public keys with exponent 3 for affected signature-verification paths.
fixed in 1.4.1
outcome
Contextual check: a technique exists and was validated, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-27 04:53Zghsa: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/ETK-2026-2725
{ "etk_id": "ETK-2026-2725", "cve_id": null, "display_id": "ETK-2026-2725", "ghsa_id": "GHSA-6qrw-m8cv-hcxf", "euvd_id": null, "status": "published", "anchor_state": "awaiting_cve", "title": "Non-canonical RSA signature verification in node-forge", "summary": "node-forge before 1.4.1 may accept malformed DigestInfo encodings when verifying default RSASSA-PKCS1-v1_5 signatures, including X.509 and PKCS#7 signatures. An attacker may forge a signature that is accepted as valid when the application verifies it with an RSA public key using exponent 3.", "mitigation": "Upgrade node-forge to 1.4.1. Until upgraded, do not use RSA public keys with exponent 3 for affected signature-verification paths.", "vendor": "npm", "product": "npm:node-forge", "affected": [ { "affected_notes": [], "affected_ranges": [ "<= 1.4.0" ], "ecosystem": "npm", "fixed_versions": [ "1.4.1" ], "package_name": "node-forge", "purl": "pkg:npm/node-forge" } ], "cwes": [ 347 ], "cvss_score": 7.5, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": true, "check_confidence_basis": "assessed", "exploit": false, "pipeline_minutes": 23.98799975, "t0_at": null, "signals": { "check": { "at": "2026-10-27T05:46:46.955837+00:00", "days": -0.1277500502199074, "is_lower_bound": true, "measured_at": "2026-10-27T08:50:44.587723+00:00", "url": null }, "trigger_signal": { "at": "2026-10-27T04:53:32+00:00", "days": -0.16472870574074075, "is_lower_bound": true, "measured_at": "2026-10-27T08:50:44.587723+00:00", "url": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-6qrw-m8cv-hcxf" } } }
published 2026-10-27 05:22Z
last change 2026-10-27 08:49Z
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